diff --git a/CHANGELOG.md b/CHANGELOG.md
index a663b3d72..f493b63e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,4 +3,4 @@
 
 - [Bugfix: fix router bug and add router example](https://github.com/Tencent/spring-cloud-tencent/pull/89)
 - [feat:fix discovery weight param not set to register request bug](https://github.com/Tencent/spring-cloud-tencent/pull/102)
-
+- [Bugfix: fix causing cpu 100% when set ScheduledThreadPoolExecutor corePoolSize=0](https://github.com/Tencent/spring-cloud-tencent/pull/98)
diff --git a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
index b947db594..24b2a0a4a 100644
--- a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
+++ b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java
@@ -18,8 +18,8 @@
 
 package com.tencent.cloud.polaris.registry;
 
+import java.util.concurrent.Executors;
 import java.util.concurrent.ScheduledExecutorService;
-import java.util.concurrent.ScheduledThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
 
 import com.tencent.cloud.common.metadata.config.MetadataLocalProperties;
@@ -71,13 +71,11 @@ public class PolarisServiceRegistry implements ServiceRegistry<Registration> {
 		this.polarisDiscoveryProperties = polarisDiscoveryProperties;
 		this.polarisDiscoveryHandler = polarisDiscoveryHandler;
 		this.metadataLocalProperties = metadataLocalProperties;
+
 		if (polarisDiscoveryProperties.isHeartbeatEnabled()) {
-			ScheduledThreadPoolExecutor heartbeatExecutor = new ScheduledThreadPoolExecutor(
-					0, new NamedThreadFactory("spring-cloud-heartbeat"));
-			heartbeatExecutor.setMaximumPoolSize(1);
-			this.heartbeatExecutor = heartbeatExecutor;
-		}
-		else {
+			this.heartbeatExecutor = Executors
+					.newSingleThreadScheduledExecutor(new NamedThreadFactory("spring-cloud-heartbeat"));
+		} else {
 			this.heartbeatExecutor = null;
 		}
 	}
diff --git a/spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/resources/bootstrap.yml
index ebf6fe5c8..138c119f6 100644
--- a/spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/resources/bootstrap.yml
@@ -7,8 +7,7 @@ spring:
     tencent:
       metadata:
         content:
-          version: v2
-          xx: zz
+          label1: value2
     polaris:
       address: grpc://127.0.0.1:8091
       namespace: default