diff --git a/core/src/main/scala/com/pingcap/tispark/TiConfigConst.scala b/core/src/main/scala/com/pingcap/tispark/TiConfigConst.scala
index a5b5e668f..13edb589f 100644
--- a/core/src/main/scala/com/pingcap/tispark/TiConfigConst.scala
+++ b/core/src/main/scala/com/pingcap/tispark/TiConfigConst.scala
@@ -102,7 +102,5 @@ object TiConfigConst {
   val DEFAULT_LOAD_TABLES: Boolean = true
   // health check timeout
   val GRPC_HEALTH_CHECK_TIMEOUT = "spark.tispark.grpc.health_check_timeout_in_ms"
-  val DEFAULT_GRPC_HEALTH_CHECK_TIMEOUT = "2000"
   val GPRC_HEALTH_CHECK_PERIOD = "spark.tispark.grpc.health_check_period_in_ms"
-  val DEFAULT_GRPC_HEALTH_CHECK_PERIOD = "3000"
 }
diff --git a/core/src/main/scala/com/pingcap/tispark/utils/TiUtil.scala b/core/src/main/scala/com/pingcap/tispark/utils/TiUtil.scala
index f77b53a87..485608127 100644
--- a/core/src/main/scala/com/pingcap/tispark/utils/TiUtil.scala
+++ b/core/src/main/scala/com/pingcap/tispark/utils/TiUtil.scala
@@ -262,10 +262,10 @@ object TiUtil {
       conf
         .get(
           TiConfigConst.GRPC_HEALTH_CHECK_TIMEOUT,
-          TiConfigConst.DEFAULT_GRPC_HEALTH_CHECK_TIMEOUT)
+          TiConfiguration.DEFHealthCheckTimeout.toString)
         .toInt)
     tiConf.setHealthCheckPeriod(conf
-      .get(TiConfigConst.GPRC_HEALTH_CHECK_PERIOD, TiConfigConst.DEFAULT_GRPC_HEALTH_CHECK_PERIOD)
+      .get(TiConfigConst.GPRC_HEALTH_CHECK_PERIOD, TiConfiguration.DEFHealthCheckPeriod.toString)
       .toInt)
     tiConf
   }
diff --git a/tikv-client/src/main/java/com/pingcap/tikv/TiConfiguration.java b/tikv-client/src/main/java/com/pingcap/tikv/TiConfiguration.java
index 6a9d1be25..2d472912b 100644
--- a/tikv-client/src/main/java/com/pingcap/tikv/TiConfiguration.java
+++ b/tikv-client/src/main/java/com/pingcap/tikv/TiConfiguration.java
@@ -187,8 +187,11 @@ public TiConfiguration setCertReloadIntervalInSeconds(String interval) {
   private ReplicaReadPolicy replicaReadPolicy = ReplicaReadPolicy.DEFAULT;
 
   private boolean enableGrpcForward = false;
-  private int healthCheckTimeout;
-  private int healthCheckPeriod;
+
+  public static final int DEFHealthCheckTimeout = 2000;
+  public static final int DEFHealthCheckPeriod = 3000;
+  private int healthCheckTimeout = DEFHealthCheckTimeout;
+  private int healthCheckPeriod = DEFHealthCheckPeriod;
 
   private static Long getTimeAsSeconds(String key) {
     return Utils.timeStringAsSec(key);