diff --git a/cmd/manager/main.go b/cmd/manager/main.go
index 417d7057b04..7896166575f 100644
--- a/cmd/manager/main.go
+++ b/cmd/manager/main.go
@@ -147,7 +147,6 @@ func init() {
 	viper.SetDefault(constant.CfgKBReconcileWorkers, 8)
 	viper.SetDefault(constant.FeatureGateIgnoreConfigTemplateDefaultMode, false)
 	viper.SetDefault(constant.FeatureGateInPlacePodVerticalScaling, false)
-	viper.SetDefault(constant.FeatureGateNoRSMEnv, false)
 }
 
 type flagName string
diff --git a/controllers/apps/transformer_component_workload_upgrade.go b/controllers/apps/transformer_component_workload_upgrade.go
index 85e300c9b37..343d3b52f6a 100644
--- a/controllers/apps/transformer_component_workload_upgrade.go
+++ b/controllers/apps/transformer_component_workload_upgrade.go
@@ -21,6 +21,7 @@ package apps
 
 import (
 	"context"
+	"fmt"
 	"reflect"
 
 	appsv1 "k8s.io/api/apps/v1"
@@ -65,7 +66,7 @@ func (t *componentWorkloadUpgradeTransformer) Transform(ctx graph.TransformConte
 	ml := constant.GetCompLabels(synthesizeComp.ClusterName, synthesizeComp.Name)
 	inNS := client.InNamespace(comp.Namespace)
 	defaultHeadlessSvc := constant.GenerateDefaultComponentHeadlessServiceName(synthesizeComp.ClusterName, synthesizeComp.Name)
-	envCM := instanceset.GetEnvConfigMapName(constant.GenerateClusterComponentName(synthesizeComp.ClusterName, synthesizeComp.Name))
+	envCM := getEnvConfigMapName(constant.GenerateClusterComponentName(synthesizeComp.ClusterName, synthesizeComp.Name))
 	var revision string
 	for _, list := range objectList {
 		if err := graphCli.List(transCtx.Context, list, client.MatchingLabels(ml), inNS); err == nil {
@@ -169,6 +170,10 @@ func buildRevision(synthesizeComp *component.SynthesizedComponent, componentDef
 	if err != nil {
 		return "", err
 	}
-	template := instanceset.BuildPodTemplate(its, instanceset.GetEnvConfigMapName(its.Name))
+	template := instanceset.BuildPodTemplate(its)
 	return instanceset.BuildInstanceTemplateRevision(template, its)
 }
+
+func getEnvConfigMapName(rsmName string) string {
+	return fmt.Sprintf("%s-rsm-env", rsmName)
+}
diff --git a/deploy/helm/templates/deployment.yaml b/deploy/helm/templates/deployment.yaml
index 83e9db26a9b..2d30a99774f 100644
--- a/deploy/helm/templates/deployment.yaml
+++ b/deploy/helm/templates/deployment.yaml
@@ -178,8 +178,6 @@ spec:
               value: {{ .Values.featureGates.componentReplicasAnnotation.enabled | quote }}
             - name: IN_PLACE_POD_VERTICAL_SCALING
               value: {{ .Values.featureGates.inPlacePodVerticalScaling.enabled | quote }}
-            - name: NO_RSM_ENV
-              value: {{ .Values.featureGates.noRSMEnv.enabled | quote }}
           {{- with .Values.securityContext }}
           securityContext:
             {{- toYaml . | nindent 12 }}
diff --git a/deploy/helm/values.yaml b/deploy/helm/values.yaml
index 6ba60d82c02..50cf91afc22 100644
--- a/deploy/helm/values.yaml
+++ b/deploy/helm/values.yaml
@@ -1925,8 +1925,6 @@ featureGates:
     enabled: true
   inPlacePodVerticalScaling:
     enabled: false
-  noRSMEnv:
-    enabled: false
 
 vmagent:
 
diff --git a/pkg/constant/flag.go b/pkg/constant/flag.go
index 76a06f1b129..af99953e857 100644
--- a/pkg/constant/flag.go
+++ b/pkg/constant/flag.go
@@ -36,7 +36,4 @@ const (
 	// FeatureGateInPlacePodVerticalScaling specifies to enable in-place pod vertical scaling
 	// NOTE: This feature depends on the InPlacePodVerticalScaling feature of the K8s cluster in which the KubeBlocks runs.
 	FeatureGateInPlacePodVerticalScaling = "IN_PLACE_POD_VERTICAL_SCALING"
-
-	// FeatureGateNoRSMEnv specifies not to create the '$(instanceset.name)-rsm-env' ConfigMap object.
-	FeatureGateNoRSMEnv = "NO_RSM_ENV"
 )
diff --git a/pkg/controller/instanceset/instance_util.go b/pkg/controller/instanceset/instance_util.go
index 98bffe4f8e1..daec5768159 100644
--- a/pkg/controller/instanceset/instance_util.go
+++ b/pkg/controller/instanceset/instance_util.go
@@ -682,8 +682,7 @@ func BuildInstanceTemplateRevision(template *corev1.PodTemplateSpec, parent *wor
 }
 
 func buildInstanceTemplateExts(itsExt *instanceSetExt) []*instanceTemplateExt {
-	envConfigName := GetEnvConfigMapName(itsExt.its.Name)
-	defaultTemplate := BuildPodTemplate(itsExt.its, envConfigName)
+	defaultTemplate := BuildPodTemplate(itsExt.its)
 	makeInstanceTemplateExt := func(templateName string) *instanceTemplateExt {
 		var claims []corev1.PersistentVolumeClaim
 		for _, template := range itsExt.its.Spec.VolumeClaimTemplates {
diff --git a/pkg/controller/instanceset/instance_util_test.go b/pkg/controller/instanceset/instance_util_test.go
index 80bd3fcd20a..c10b3edf0fe 100644
--- a/pkg/controller/instanceset/instance_util_test.go
+++ b/pkg/controller/instanceset/instance_util_test.go
@@ -131,8 +131,7 @@ var _ = Describe("instance util test", func() {
 			Expect(nameTemplate).Should(HaveKey(its.Name + "-1"))
 			Expect(nameTemplate).Should(HaveKey(its.Name + "-2"))
 			nameTemplate[name0].PodTemplateSpec.Spec.Volumes = nil
-			envConfigName := GetEnvConfigMapName(its.Name)
-			defaultTemplate := BuildPodTemplate(its, envConfigName)
+			defaultTemplate := BuildPodTemplate(its)
 			Expect(nameTemplate[name0].PodTemplateSpec.Spec).Should(Equal(defaultTemplate.Spec))
 		})
 
@@ -169,8 +168,7 @@ var _ = Describe("instance util test", func() {
 			Expect(nameTemplate).Should(HaveKey(name0))
 			Expect(nameTemplate).Should(HaveKey(name1))
 			Expect(nameTemplate).Should(HaveKey(nameOverride0))
-			envConfigName := GetEnvConfigMapName(its.Name)
-			expectedTemplate := BuildPodTemplate(its, envConfigName)
+			expectedTemplate := BuildPodTemplate(its)
 			Expect(nameTemplate[name0].PodTemplateSpec.Spec).Should(Equal(expectedTemplate.Spec))
 			Expect(nameTemplate[name1].PodTemplateSpec.Spec).Should(Equal(expectedTemplate.Spec))
 			Expect(nameTemplate[nameOverride0].PodTemplateSpec.Spec).ShouldNot(Equal(expectedTemplate.Spec))
@@ -201,8 +199,7 @@ var _ = Describe("instance util test", func() {
 			Expect(instance.pod.Namespace).Should(Equal(its.Namespace))
 			Expect(instance.pod.Spec.Volumes).Should(HaveLen(1))
 			Expect(instance.pod.Spec.Volumes[0].Name).Should(Equal(volumeClaimTemplates[0].Name))
-			envConfigName := GetEnvConfigMapName(its.Name)
-			expectedTemplate := BuildPodTemplate(its, envConfigName)
+			expectedTemplate := BuildPodTemplate(its)
 			Expect(instance.pod.Spec).ShouldNot(Equal(expectedTemplate.Spec))
 			// reset pod.volumes, pod.hostname and pod.subdomain
 			instance.pod.Spec.Volumes = nil
diff --git a/pkg/controller/instanceset/object_builder.go b/pkg/controller/instanceset/object_builder.go
index 9032ed38219..8c7cc1e1265 100644
--- a/pkg/controller/instanceset/object_builder.go
+++ b/pkg/controller/instanceset/object_builder.go
@@ -82,35 +82,8 @@ func getHeadlessSvcName(itsName string) string {
 	return strings.Join([]string{itsName, "headless"}, "-")
 }
 
-func buildEnvConfigMap(its workloads.InstanceSet, labels map[string]string) (*corev1.ConfigMap, error) {
-	if viper.GetBool(constant.FeatureGateNoRSMEnv) {
-		return nil, nil
-	}
-	envData, err := buildEnvConfigData(its)
-	if err != nil {
-		return nil, err
-	}
-	annotations := ParseAnnotationsOfScope(ConfigMapScope, its.Annotations)
-	return builder.NewConfigMapBuilder(its.Namespace, GetEnvConfigMapName(its.Name)).
-		AddAnnotationsInMap(annotations).
-		AddLabelsInMap(labels).
-		SetData(envData).GetObject(), nil
-}
-
-func BuildPodTemplate(its *workloads.InstanceSet, envConfigName string) *corev1.PodTemplateSpec {
+func BuildPodTemplate(its *workloads.InstanceSet) *corev1.PodTemplateSpec {
 	template := its.Spec.Template.DeepCopy()
-	// inject env ConfigMap into workload pods only
-	for i := range template.Spec.Containers {
-		template.Spec.Containers[i].EnvFrom = append(template.Spec.Containers[i].EnvFrom,
-			corev1.EnvFromSource{
-				ConfigMapRef: &corev1.ConfigMapEnvSource{
-					LocalObjectReference: corev1.LocalObjectReference{
-						Name: envConfigName,
-					},
-					Optional: func() *bool { optional := false; return &optional }(),
-				}})
-	}
-
 	injectRoleProbeContainer(its, template)
 
 	return template
@@ -357,63 +330,3 @@ func injectCustomRoleProbeContainer(its *workloads.InstanceSet, template *corev1
 		template.Spec.Containers = append(template.Spec.Containers, container)
 	}
 }
-
-func buildEnvConfigData(its workloads.InstanceSet) (map[string]string, error) {
-	envData := map[string]string{}
-	svcName := getHeadlessSvcName(its.Name)
-	uid := string(its.UID)
-	strReplicas := strconv.Itoa(int(*its.Spec.Replicas))
-	generateReplicaEnv := func(prefix string, podNames []string) {
-		for _, podName := range podNames {
-			_, ordinal := ParseParentNameAndOrdinal(podName)
-			hostNameTplKey := prefix + strconv.Itoa(ordinal) + "_HOSTNAME"
-			hostNameTplValue := its.Name + "-" + strconv.Itoa(ordinal)
-			envData[hostNameTplKey] = fmt.Sprintf("%s.%s", hostNameTplValue, svcName)
-		}
-	}
-	// build member related envs from set.Status.MembersStatus
-	generateMemberEnv := func(prefix string) {
-		followers := ""
-		for _, memberStatus := range its.Status.MembersStatus {
-			if memberStatus.PodName == "" || memberStatus.PodName == defaultPodName || memberStatus.ReplicaRole == nil {
-				continue
-			}
-			switch {
-			case memberStatus.ReplicaRole.IsLeader:
-				envData[prefix+"LEADER"] = memberStatus.PodName
-			case memberStatus.ReplicaRole.CanVote:
-				if len(followers) > 0 {
-					followers += ","
-				}
-				followers += memberStatus.PodName
-			}
-		}
-		if followers != "" {
-			envData[prefix+"FOLLOWERS"] = followers
-		}
-	}
-	// generate all pod names
-	generatePodNames := func() ([]string, error) {
-		var instances []InstanceTemplate
-		for i := range its.Spec.Instances {
-			instances = append(instances, &its.Spec.Instances[i])
-		}
-		return GenerateAllInstanceNames(its.Name, *its.Spec.Replicas, instances, its.Spec.OfflineInstances, its.Spec.DefaultTemplateOrdinals)
-	}
-
-	// all pod names
-	podNames, err := generatePodNames()
-	if err != nil {
-		return nil, err
-	}
-
-	prefix := constant.KBPrefix + "_ITS_"
-	envData[prefix+"N"] = strReplicas
-	generateReplicaEnv(prefix, podNames)
-	generateMemberEnv(prefix)
-	// set owner uid to let pod know if the owner is recreated
-	envData[prefix+"OWNER_UID"] = uid
-	envData[prefix+"OWNER_UID_SUFFIX8"] = uid[len(uid)-4:]
-
-	return envData, nil
-}
diff --git a/pkg/controller/instanceset/object_builder_test.go b/pkg/controller/instanceset/object_builder_test.go
index 465bf7b6bc8..0403511ec59 100644
--- a/pkg/controller/instanceset/object_builder_test.go
+++ b/pkg/controller/instanceset/object_builder_test.go
@@ -20,8 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 package instanceset
 
 import (
-	"fmt"
-
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 
@@ -48,73 +46,6 @@ var _ = Describe("object generation transformer test.", func() {
 			GetObject()
 	})
 
-	Context("buildEnvConfigData function", func() {
-		It("should work well", func() {
-			By("build env config data")
-			its.Status.MembersStatus = []workloads.MemberStatus{
-				{
-					PodName:     getPodName(its.Name, 1),
-					ReplicaRole: &workloads.ReplicaRole{Name: "leader", IsLeader: true},
-				},
-				{
-					PodName:     getPodName(its.Name, 0),
-					ReplicaRole: &workloads.ReplicaRole{Name: "follower", CanVote: true},
-				},
-				{
-					PodName:     getPodName(its.Name, 2),
-					ReplicaRole: &workloads.ReplicaRole{Name: "follower", CanVote: true},
-				},
-			}
-			requiredKeys := []string{
-				"KB_ITS_N",
-				"KB_ITS_0_HOSTNAME",
-			}
-			cfg, err := buildEnvConfigData(*its)
-			Expect(err).Should(BeNil())
-			By("builds Env Config correctly")
-			Expect(cfg).ShouldNot(BeNil())
-			for _, k := range requiredKeys {
-				_, ok := cfg[k]
-				Expect(ok).Should(BeTrue())
-			}
-
-			By("builds Env Config with ConsensusSet status correctly")
-			toCheckKeys := append(requiredKeys, []string{
-				"KB_ITS_LEADER",
-				"KB_ITS_FOLLOWERS",
-			}...)
-			for _, k := range toCheckKeys {
-				_, ok := cfg[k]
-				Expect(ok).Should(BeTrue())
-			}
-		})
-
-		It("non-sequential ordinal", func() {
-			By("build env config data")
-			its.Spec.OfflineInstances = []string{
-				getPodName(its.Name, 1),
-			}
-			hostname := func(i int) string {
-				return fmt.Sprintf("%s.%s", getPodName(its.Name, i), getHeadlessSvcName(its.Name))
-			}
-			requiredKeys := map[string]string{
-				"KB_ITS_N":          "3",
-				"KB_ITS_0_HOSTNAME": hostname(0),
-				"KB_ITS_2_HOSTNAME": hostname(2),
-				"KB_ITS_3_HOSTNAME": hostname(3),
-			}
-			cfg, err := buildEnvConfigData(*its)
-			Expect(err).Should(BeNil())
-
-			By("builds Env Config correctly")
-			Expect(cfg).ShouldNot(BeNil())
-			for k, v := range requiredKeys {
-				Expect(cfg).Should(HaveKeyWithValue(k, v))
-			}
-			Expect(cfg).ShouldNot(HaveKey("KB_ITS_1_HOSTNAME"))
-		})
-	})
-
 	Context("well-known service labels", func() {
 		It("should work well", func() {
 			svc := buildSvc(*its, getMatchLabels(its.Name), getSvcSelector(its, false))
diff --git a/pkg/controller/instanceset/reconciler_assistant_object.go b/pkg/controller/instanceset/reconciler_assistant_object.go
index 0b46c287d68..b9017cda17d 100644
--- a/pkg/controller/instanceset/reconciler_assistant_object.go
+++ b/pkg/controller/instanceset/reconciler_assistant_object.go
@@ -57,18 +57,11 @@ func (a *assistantObjectReconciler) Reconcile(tree *kubebuilderx.ObjectTree) (ku
 
 	svc := buildSvc(*its, labels, selectors)
 	headLessSvc := buildHeadlessSvc(*its, labels, headlessSelectors)
-	envConfig, err := buildEnvConfigMap(*its, labels)
-	if err != nil {
-		return kubebuilderx.Continue, err
-	}
 	var objects []client.Object
 	if svc != nil {
 		objects = append(objects, svc)
 	}
 	objects = append(objects, headLessSvc)
-	if envConfig != nil {
-		objects = append(objects, envConfig)
-	}
 	for _, object := range objects {
 		if err := intctrlutil.SetOwnership(its, object, model.GetScheme(), finalizer); err != nil {
 			return kubebuilderx.Continue, err
diff --git a/pkg/controller/instanceset/reconciler_assistant_object_test.go b/pkg/controller/instanceset/reconciler_assistant_object_test.go
index 825fec34f56..f70ea66c40e 100644
--- a/pkg/controller/instanceset/reconciler_assistant_object_test.go
+++ b/pkg/controller/instanceset/reconciler_assistant_object_test.go
@@ -23,8 +23,6 @@ import (
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
 
-	"sigs.k8s.io/controller-runtime/pkg/client"
-
 	"github.com/apecloud/kubeblocks/pkg/controller/builder"
 	"github.com/apecloud/kubeblocks/pkg/controller/kubebuilderx"
 	"github.com/apecloud/kubeblocks/pkg/controller/model"
@@ -55,17 +53,15 @@ var _ = Describe("assistant object reconciler test", func() {
 			res, err := reconciler.Reconcile(tree)
 			Expect(err).Should(BeNil())
 			Expect(res).Should(Equal(kubebuilderx.Continue))
-			// desired: svc: "bar-headless", cm: "bar"
+			// desired: svc: "bar-headless"
 			objects := tree.GetSecondaryObjects()
-			Expect(objects).Should(HaveLen(2))
+			Expect(objects).Should(HaveLen(1))
 			svc := builder.NewHeadlessServiceBuilder(namespace, name+"-headless").GetObject()
-			cm := builder.NewConfigMapBuilder(namespace, GetEnvConfigMapName(name)).GetObject()
-			for _, object := range []client.Object{svc, cm} {
-				name, err := model.GetGVKName(object)
-				Expect(err).Should(BeNil())
-				_, ok := objects[*name]
-				Expect(ok).Should(BeTrue())
-			}
+			name, err := model.GetGVKName(svc)
+			Expect(err).Should(BeNil())
+			_, ok := objects[*name]
+			Expect(ok).Should(BeTrue())
+
 		})
 	})
 })
diff --git a/pkg/controller/instanceset/types.go b/pkg/controller/instanceset/types.go
index f47adac5e3a..4af6d8ab75b 100644
--- a/pkg/controller/instanceset/types.go
+++ b/pkg/controller/instanceset/types.go
@@ -26,8 +26,6 @@ const (
 	RoleLabelKey       = "kubeblocks.io/role"
 	AccessModeLabelKey = "workloads.kubeblocks.io/access-mode"
 
-	defaultPodName = "Unknown"
-
 	LegacyRSMFinalizerName = "rsm.workloads.kubeblocks.io/finalizer"
 
 	roleProbeContainerName       = "kb-role-probe"
diff --git a/pkg/controller/instanceset/utils.go b/pkg/controller/instanceset/utils.go
index ebe557c7717..aa7e69aaad5 100644
--- a/pkg/controller/instanceset/utils.go
+++ b/pkg/controller/instanceset/utils.go
@@ -189,10 +189,6 @@ func ParseAnnotationsOfScope(scope AnnotationScope, scopedAnnotations map[string
 	return annotations
 }
 
-func GetEnvConfigMapName(itsName string) string {
-	return fmt.Sprintf("%s-rsm-env", itsName)
-}
-
 func composeRoleMap(its workloads.InstanceSet) map[string]workloads.ReplicaRole {
 	roleMap := make(map[string]workloads.ReplicaRole)
 	for _, role := range its.Spec.Roles {