diff --git a/config/config_api.go b/config/config_api.go
new file mode 100644
index 0000000000..eac5a79425
--- /dev/null
+++ b/config/config_api.go
@@ -0,0 +1,556 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package config
+
+import (
+	"context"
+	"time"
+)
+
+//////////////////////////////////// default registry config
+const (
+	// defaultZKAddr is the default registry address of zookeeper
+	defaultZKAddr = "127.0.0.1:2181"
+
+	// defaultConsulAddr is the default registry address of consul
+	defaultConsulAddr = "127.0.0.1:8500"
+
+	// defaultNacosAddr is the default registry address of nacos
+	defaultNacosAddr = "127.0.0.1:8848"
+
+	// defaultRegistryTimeout is the default registry timeout
+	defaultRegistryTimeout = "3s"
+)
+
+// NewDefaultRegistryConfig New default registry config
+// the input @protocol can only be:
+// "zookeeper" with default addr "127.0.0.1:2181"
+// "consul" with default addr "127.0.0.1:8500"
+// "nacos" with default addr "127.0.0.1:8848"
+func NewDefaultRegistryConfig(protocol string) *RegistryConfig {
+	switch protocol {
+	case "zookeeper":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultZKAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	case "consul":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultConsulAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	case "nacos":
+		return &RegistryConfig{
+			Protocol:   protocol,
+			Address:    defaultNacosAddr,
+			TimeoutStr: defaultRegistryTimeout,
+		}
+	default:
+		return &RegistryConfig{
+			Protocol: protocol,
+		}
+	}
+}
+
+///////////////////////////////////// registry config api
+type RegistryConfigOpt func(config *RegistryConfig) *RegistryConfig
+
+// NewRegistryConfig creates New RegistryConfig with @opts
+func NewRegistryConfig(opts ...RegistryConfigOpt) *RegistryConfig {
+	newRegistryConfig := NewDefaultRegistryConfig("")
+	for _, v := range opts {
+		newRegistryConfig = v(newRegistryConfig)
+	}
+	return newRegistryConfig
+}
+
+// WithRegistryProtocol returns RegistryConfigOpt with given @regProtocol name
+func WithRegistryProtocol(regProtocol string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Protocol = regProtocol
+		return config
+	}
+}
+
+// WithRegistryAddress returns RegistryConfigOpt with given @addr registry address
+func WithRegistryAddress(addr string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Address = addr
+		return config
+	}
+}
+
+// WithRegistryTimeOut returns RegistryConfigOpt with given @timeout registry config
+func WithRegistryTimeOut(timeout string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.TimeoutStr = timeout
+		return config
+	}
+}
+
+// WithRegistryGroup returns RegistryConfigOpt with given @group registry group
+func WithRegistryGroup(group string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Group = group
+		return config
+	}
+}
+
+// WithRegistryTTL returns RegistryConfigOpt with given @ttl registry ttl
+func WithRegistryTTL(ttl string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.TTL = ttl
+		return config
+	}
+}
+
+// WithRegistryUserName returns RegistryConfigOpt with given @userName registry userName
+func WithRegistryUserName(userName string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Username = userName
+		return config
+	}
+}
+
+// WithRegistryPassword returns RegistryConfigOpt with given @psw registry password
+func WithRegistryPassword(psw string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Password = psw
+		return config
+	}
+}
+
+// WithRegistrySimplified returns RegistryConfigOpt with given @simplified registry simplified flag
+func WithRegistrySimplified(simplified bool) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Simplified = simplified
+		return config
+	}
+}
+
+// WithRegistryPreferred returns RegistryConfig with given @preferred registry preferred flag
+func WithRegistryPreferred(preferred bool) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Preferred = preferred
+		return config
+	}
+}
+
+// WithRegistryWeight returns RegistryConfigOpt with given @weight registry weight flag
+func WithRegistryWeight(weight int64) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Weight = weight
+		return config
+	}
+}
+
+// WithRegistryParams returns RegistryConfigOpt with given registry @params
+func WithRegistryParams(params map[string]string) RegistryConfigOpt {
+	return func(config *RegistryConfig) *RegistryConfig {
+		config.Params = params
+		return config
+	}
+}
+
+///////////////////////////////////// consumer config api
+// ConsumerConfigOpt is the options to init ConsumerConfig
+type ConsumerConfigOpt func(config *ConsumerConfig) *ConsumerConfig
+
+// NewDefaultConsumerConfig returns default ConsumerConfig
+// with connection timeout = 3s, request timeout = 3s
+func NewDefaultConsumerConfig() *ConsumerConfig {
+	check := true
+	newConsumerConfig := &ConsumerConfig{
+		BaseConfig:     BaseConfig{},
+		Registries:     make(map[string]*RegistryConfig, 8),
+		References:     make(map[string]*ReferenceConfig, 8),
+		ConnectTimeout: 3 * time.Second,
+		RequestTimeout: 3 * time.Second,
+		Check:          &check,
+	}
+	return newConsumerConfig
+}
+
+// NewConsumerConfig returns ConsumerConfig with @opts
+func NewConsumerConfig(opts ...ConsumerConfigOpt) *ConsumerConfig {
+	newConfig := NewDefaultConsumerConfig()
+	for _, v := range opts {
+		v(newConfig)
+	}
+	return newConfig
+}
+
+// WithConsumerAppConfig returns ConsumerConfigOpt with given @appConfig
+func WithConsumerAppConfig(appConfig *ApplicationConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ApplicationConfig = appConfig
+		return config
+	}
+}
+
+// WithConsumerRegistryConfig returns ConsumerConfigOpt with given @registryKey and @regConfig
+func WithConsumerRegistryConfig(registryKey string, regConfig *RegistryConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.Registries[registryKey] = regConfig
+		return config
+	}
+}
+
+// WithConsumerReferenceConfig returns ConsumerConfigOpt with
+func WithConsumerReferenceConfig(referenceKey string, refConfig *ReferenceConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.References[referenceKey] = refConfig
+		return config
+	}
+}
+
+// WithConsumerConnTimeout returns ConsumerConfigOpt with given consumer conn @timeout
+func WithConsumerConnTimeout(timeout time.Duration) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ConnectTimeout = timeout
+		return config
+	}
+}
+
+// WithConsumerRequestTimeout returns ConsumerConfigOpt with given consumer request @timeout
+func WithConsumerRequestTimeout(timeout time.Duration) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.RequestTimeout = timeout
+		return config
+	}
+}
+
+// WithConsumerConfigCenterConfig returns ConsumerConfigOpt with given @configCenterConfig
+func WithConsumerConfigCenterConfig(configCenterConfig *ConfigCenterConfig) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		config.ConfigCenterConfig = configCenterConfig
+		return config
+	}
+}
+
+// WithConsumerConfigCheck returns ConsumerConfigOpt with given @check flag
+func WithConsumerConfigCheck(check bool) ConsumerConfigOpt {
+	return func(config *ConsumerConfig) *ConsumerConfig {
+		*config.Check = check
+		return config
+	}
+}
+
+//////////////////////////////////// reference config api
+// ReferenceConfigOpt is consumer's reference config
+type ReferenceConfigOpt func(config *ReferenceConfig) *ReferenceConfig
+
+// NewDefaultReferenceConfig returns empty ReferenceConfig
+func NewDefaultReferenceConfig() *ReferenceConfig {
+	newReferenceConfig := NewReferenceConfig("", context.Background())
+	newReferenceConfig.Methods = make([]*MethodConfig, 0, 8)
+	newReferenceConfig.Params = make(map[string]string, 8)
+	return newReferenceConfig
+}
+
+// NewReferenceConfigByAPI returns ReferenceConfig with given @opts
+func NewReferenceConfigByAPI(opts ...ReferenceConfigOpt) *ReferenceConfig {
+	newreferenceConfig := NewDefaultReferenceConfig()
+	for _, v := range opts {
+		v(newreferenceConfig)
+	}
+	return newreferenceConfig
+}
+
+// WithReferenceRegistry returns ReferenceConfigOpt with given registryKey: @registry
+func WithReferenceRegistry(registry string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Registry = registry
+		return config
+	}
+}
+
+// WithReferenceProtocol returns ReferenceConfigOpt with given protocolKey: @protocol
+func WithReferenceProtocol(protocol string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Protocol = protocol
+		return config
+	}
+}
+
+// WithReferenceInterface returns ReferenceConfigOpt with given @interfaceName
+func WithReferenceInterface(interfaceName string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.InterfaceName = interfaceName
+		return config
+	}
+}
+
+// WithReferenceCluster returns ReferenceConfigOpt with given cluster name: @cluster
+func WithReferenceCluster(cluster string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Cluster = cluster
+		return config
+	}
+}
+
+// WithReferenceMethod returns ReferenceConfigOpt with given @method, @retries, and load balance: @lb
+func WithReferenceMethod(methodName, retries, lb string) ReferenceConfigOpt {
+	return func(config *ReferenceConfig) *ReferenceConfig {
+		config.Methods = append(config.Methods, &MethodConfig{
+			Name:        methodName,
+			Retries:     retries,
+			LoadBalance: lb,
+		})
+		return config
+	}
+}
+
+///////////////////////////////////// provider config api
+// ProviderConfigOpt is the
+type ProviderConfigOpt func(config *ProviderConfig) *ProviderConfig
+
+// NewDefaultProviderConfig returns ProviderConfig with default ApplicationConfig
+func NewDefaultProviderConfig() *ProviderConfig {
+	newConsumerConfig := &ProviderConfig{
+		BaseConfig: BaseConfig{
+			ApplicationConfig: &ApplicationConfig{
+				Name:         "dubbo",
+				Module:       "module",
+				Organization: "dubbo_org",
+				Owner:        "dubbo",
+			},
+		},
+		Services:   make(map[string]*ServiceConfig),
+		Registries: make(map[string]*RegistryConfig, 8),
+		Protocols:  make(map[string]*ProtocolConfig, 8),
+	}
+	return newConsumerConfig
+}
+
+// NewProviderConfig returns ProviderConfig with given @opts
+func NewProviderConfig(opts ...ProviderConfigOpt) *ProviderConfig {
+	newConfig := NewDefaultProviderConfig()
+	for _, v := range opts {
+		v(newConfig)
+	}
+	return newConfig
+}
+
+// WithPrividerRegistryConfig returns ProviderConfigOpt with given registry config: @regConfig
+func WithPrividerRegistryConfig(regConfig *RegistryConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Registries[regConfig.Protocol] = regConfig
+		return config
+	}
+}
+
+// WithProviderAppConfig returns ProviderConfigOpt with given @appConfig
+func WithProviderAppConfig(appConfig *ApplicationConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.ApplicationConfig = appConfig
+		return config
+	}
+}
+
+// WithProviderServices returns ProviderConfig with given serviceNameKey @serviceName and @serviceConfig
+func WithProviderServices(serviceName string, serviceConfig *ServiceConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Services[serviceName] = serviceConfig
+		return config
+	}
+}
+
+// WithProviderProtocol returns ProviderConfigOpt with given @protocolKey, protocolName @protocol and @port
+func WithProviderProtocol(protocolKey, protocol, port string) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Protocols[protocolKey] = &ProtocolConfig{
+			Name: protocol,
+			Port: port,
+		}
+		return config
+	}
+}
+
+// WithProviderRegistry returns ProviderConfigOpt with given @registryKey and registry @registryConfig
+func WithProviderRegistry(registryKey string, registryConfig *RegistryConfig) ProviderConfigOpt {
+	return func(config *ProviderConfig) *ProviderConfig {
+		config.Registries[registryKey] = registryConfig
+		return config
+	}
+}
+
+/////////////////////////////////////// service config api
+// ServiceConfigOpt is the option to init ServiceConfig
+type ServiceConfigOpt func(config *ServiceConfig) *ServiceConfig
+
+// NewDefaultServiceConfig returns default ServiceConfig
+func NewDefaultServiceConfig() *ServiceConfig {
+	newServiceConfig := NewServiceConfig("", context.Background())
+	newServiceConfig.Params = make(map[string]string)
+	newServiceConfig.Methods = make([]*MethodConfig, 0, 8)
+	return newServiceConfig
+}
+
+// NewServiceConfigByAPI is named as api, because there is NewServiceConfig func already declared
+// NewServiceConfigByAPI returns ServiceConfig with given @opts
+func NewServiceConfigByAPI(opts ...ServiceConfigOpt) *ServiceConfig {
+	defaultServiceConfig := NewDefaultServiceConfig()
+	for _, v := range opts {
+		v(defaultServiceConfig)
+	}
+	return defaultServiceConfig
+}
+
+// WithServiceRegistry returns ServiceConfigOpt with given registryKey @registry
+func WithServiceRegistry(registry string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Registry = registry
+		return config
+	}
+}
+
+// WithServiceProtocol returns ServiceConfigOpt with given protocolKey @protocol
+func WithServiceProtocol(protocol string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Protocol = protocol
+		return config
+	}
+}
+
+// WithServiceInterface returns ServiceConfigOpt with given @interfaceName
+func WithServiceInterface(interfaceName string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.InterfaceName = interfaceName
+		return config
+	}
+}
+
+// WithServiceLoadBalance returns ServiceConfigOpt with given load balance @lb
+func WithServiceLoadBalance(lb string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Loadbalance = lb
+		return config
+	}
+}
+
+// WithServiceWarmUpTime returns ServiceConfigOpt with given @warmUp time
+func WithServiceWarmUpTime(warmUp string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Warmup = warmUp
+		return config
+	}
+}
+
+// WithServiceCluster returns ServiceConfigOpt with given cluster name @cluster
+func WithServiceCluster(cluster string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Cluster = cluster
+		return config
+	}
+}
+
+// WithServiceMethod returns ServiceConfigOpt with given @name, @retries and load balance @lb
+func WithServiceMethod(name, retries, lb string) ServiceConfigOpt {
+	return func(config *ServiceConfig) *ServiceConfig {
+		config.Methods = append(config.Methods, &MethodConfig{
+			Name:        name,
+			Retries:     retries,
+			LoadBalance: lb,
+		})
+		return config
+	}
+}
+
+///////////////////////////////////////// Application config api
+// ApplicationConfigOpt is option to init ApplicationConfig
+type ApplicationConfigOpt func(config *ApplicationConfig) *ApplicationConfig
+
+// NewDefaultApplicationConfig returns ApplicationConfig with default
+// name: dubbo.io
+// module: sample
+// organization: dubbo.io
+// owner: dubbogo
+// version: 0.0.1
+// environment dev
+func NewDefaultApplicationConfig() *ApplicationConfig {
+	newAppConfig := &ApplicationConfig{
+		Name:         "dubbo.io",
+		Module:       "sample",
+		Organization: "dubbo.io",
+		Owner:        "dubbogo",
+		Version:      "0.0.1",
+		Environment:  "dev",
+	}
+	return newAppConfig
+}
+
+// NewApplicationConfig is named as api, because there is NewServiceConfig func already declared
+// NewApplicationConfig returns ApplicationConfig wigh default application config
+func NewApplicationConfig(opts ...ApplicationConfigOpt) *ApplicationConfig {
+	defaultServiceConfig := NewDefaultApplicationConfig()
+	for _, v := range opts {
+		v(defaultServiceConfig)
+	}
+	return defaultServiceConfig
+}
+
+// WithAppName returns ApplicationConfigOpt with given @name
+func WithAppName(name string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Name = name
+		return config
+	}
+}
+
+// WithAppModule returns ApplicationConfigOpt with given @module
+func WithAppModule(module string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Module = module
+		return config
+	}
+}
+
+// WithAppOrganization returns ApplicationConfigOpt wight given organization @org
+func WithAppOrganization(org string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Organization = org
+		return config
+	}
+}
+
+// WithAppOwner returns ApplicationConfigOpt with given @owner
+func WithAppOwner(owner string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Owner = owner
+		return config
+	}
+}
+
+// WithAppVersion returns ApplicationConfigOpt with given version @version
+func WithAppVersion(version string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Version = version
+		return config
+	}
+}
+
+// WithAppEnvironment returns ApplicationConfigOpt wigh given environment @env
+func WithAppEnvironment(env string) ApplicationConfigOpt {
+	return func(config *ApplicationConfig) *ApplicationConfig {
+		config.Environment = env
+		return config
+	}
+}
diff --git a/config/config_api_test.go b/config/config_api_test.go
new file mode 100644
index 0000000000..fd8d5613f4
--- /dev/null
+++ b/config/config_api_test.go
@@ -0,0 +1,178 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package config
+
+import (
+	"strconv"
+	"testing"
+	"time"
+)
+
+import (
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewDefaultServiceConfig(t *testing.T) {
+	serviceConfig := NewServiceConfigByAPI(
+		WithServiceCluster("test-cluster"),
+		WithServiceInterface("test-interface"),
+		WithServiceLoadBalance("test-loadbalance"),
+		WithServiceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithServiceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithServiceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithServiceProtocol("test-protocol"),
+		WithServiceRegistry("test-registry"),
+		WithServiceWarmUpTime("test-warmup"),
+	)
+	assert.Equal(t, serviceConfig.Cluster, "test-cluster")
+	assert.Equal(t, serviceConfig.InterfaceName, "test-interface")
+	assert.Equal(t, serviceConfig.Loadbalance, "test-loadbalance")
+	for i, v := range serviceConfig.Methods {
+		backFix := strconv.Itoa(i + 1)
+		assert.Equal(t, v.Name, "test-method"+backFix)
+		assert.Equal(t, v.Retries, "test-retries"+backFix)
+		assert.Equal(t, v.LoadBalance, "test-lb"+backFix)
+	}
+	assert.Equal(t, serviceConfig.Protocol, "test-protocol")
+	assert.Equal(t, serviceConfig.Registry, "test-registry")
+	assert.Equal(t, serviceConfig.Warmup, "test-warmup")
+}
+
+func TestNewReferenceConfigByAPI(t *testing.T) {
+	refConfig := NewReferenceConfigByAPI(
+		WithReferenceCluster("test-cluster"),
+		WithReferenceInterface("test-interface"),
+		WithReferenceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithReferenceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithReferenceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithReferenceProtocol("test-protocol"),
+		WithReferenceRegistry("test-registry"),
+	)
+	assert.Equal(t, refConfig.Cluster, "test-cluster")
+	assert.Equal(t, refConfig.InterfaceName, "test-interface")
+	for i, v := range refConfig.Methods {
+		backFix := strconv.Itoa(i + 1)
+		assert.Equal(t, v.Name, "test-method"+backFix)
+		assert.Equal(t, v.Retries, "test-retries"+backFix)
+		assert.Equal(t, v.LoadBalance, "test-lb"+backFix)
+	}
+	assert.Equal(t, refConfig.Protocol, "test-protocol")
+	assert.Equal(t, refConfig.Registry, "test-registry")
+}
+
+func TestNewRegistryConfig(t *testing.T) {
+	regConfig := NewRegistryConfig(
+		WithRegistryTimeOut("test-timeout"),
+		WithRegistryProtocol("test-protocol"),
+		WithRegistryGroup("test-group"),
+		WithRegistryAddress("test-address"),
+		WithRegistrySimplified(true),
+		WithRegistryUserName("test-username"),
+		WithRegistryPassword("test-password"),
+	)
+	assert.Equal(t, regConfig.TimeoutStr, "test-timeout")
+	assert.Equal(t, regConfig.Protocol, "test-protocol")
+	assert.Equal(t, regConfig.Group, "test-group")
+	assert.Equal(t, regConfig.Address, "test-address")
+	assert.Equal(t, regConfig.Simplified, true)
+	assert.Equal(t, regConfig.Username, "test-username")
+	assert.Equal(t, regConfig.Password, "test-password")
+}
+
+func TestNewConsumerConfig(t *testing.T) {
+	referConfig := NewReferenceConfigByAPI(
+		WithReferenceCluster("test-cluster"),
+		WithReferenceInterface("test-interface"),
+		WithReferenceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithReferenceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithReferenceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithReferenceProtocol("test-protocol"),
+		WithReferenceRegistry("test-registry"),
+	)
+	defaultZKRegistry := NewDefaultRegistryConfig("zookeeper")
+	assert.Equal(t, defaultZKRegistry.Address, defaultZKAddr)
+	assert.Equal(t, defaultZKRegistry.Protocol, "zookeeper")
+	assert.Equal(t, defaultZKRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	testConsumerConfig := NewConsumerConfig(
+		WithConsumerConfigCheck(true),
+		WithConsumerConnTimeout(time.Minute),
+		WithConsumerRequestTimeout(time.Hour),
+		WithConsumerReferenceConfig("UserProvider", referConfig),
+		WithConsumerRegistryConfig("demoZK", defaultZKRegistry),
+	)
+
+	assert.Equal(t, *testConsumerConfig.Check, true)
+	assert.Equal(t, testConsumerConfig.ConnectTimeout, time.Minute)
+	assert.Equal(t, testConsumerConfig.RequestTimeout, time.Hour)
+	assert.Equal(t, testConsumerConfig.Registries["demoZK"], defaultZKRegistry)
+	assert.Equal(t, testConsumerConfig.References["UserProvider"], referConfig)
+}
+
+func TestNewProviderConfig(t *testing.T) {
+	serviceConfig := NewServiceConfigByAPI(
+		WithServiceCluster("test-cluster"),
+		WithServiceInterface("test-interface"),
+		WithServiceLoadBalance("test-loadbalance"),
+		WithServiceMethod("test-method1", "test-retries1", "test-lb1"),
+		WithServiceMethod("test-method2", "test-retries2", "test-lb2"),
+		WithServiceMethod("test-method3", "test-retries3", "test-lb3"),
+		WithServiceProtocol("test-protocol"),
+		WithServiceRegistry("test-registry"),
+		WithServiceWarmUpTime("test-warmup"),
+	)
+
+	defaultConsulRegistry := NewDefaultRegistryConfig("consul")
+	assert.Equal(t, defaultConsulRegistry.Address, defaultConsulAddr)
+	assert.Equal(t, defaultConsulRegistry.Protocol, "consul")
+	assert.Equal(t, defaultConsulRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	defaultNacosRegistry := NewDefaultRegistryConfig("nacos")
+	assert.Equal(t, defaultNacosRegistry.Address, defaultNacosAddr)
+	assert.Equal(t, defaultNacosRegistry.Protocol, "nacos")
+	assert.Equal(t, defaultNacosRegistry.TimeoutStr, defaultRegistryTimeout)
+
+	testProviderConfig := NewProviderConfig(
+		WithProviderServices("UserProvider", serviceConfig),
+		WithProviderProtocol("dubbo", "dubbo", "20000"),
+		WithProviderRegistry("demoConsul", defaultConsulRegistry),
+		WithProviderRegistry("demoNacos", defaultNacosRegistry),
+	)
+
+	assert.NotNil(t, testProviderConfig.Services)
+	for k, v := range testProviderConfig.Services {
+		assert.Equal(t, k, "UserProvider")
+		assert.Equal(t, v, serviceConfig)
+	}
+	assert.NotNil(t, testProviderConfig.Registries)
+	i := 0
+	for k, v := range testProviderConfig.Registries {
+		if i == 0 {
+			assert.Equal(t, k, "demoConsul")
+			assert.Equal(t, v, defaultConsulRegistry)
+			i++
+		} else {
+			assert.Equal(t, k, "demoNacos")
+			assert.Equal(t, v, defaultNacosRegistry)
+		}
+	}
+
+	assert.NotNil(t, testProviderConfig.Protocols)
+	assert.Equal(t, testProviderConfig.Protocols["dubbo"].Name, "dubbo")
+	assert.Equal(t, testProviderConfig.Protocols["dubbo"].Port, "20000")
+}