diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4697d768d..b7ba786b6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,3 +12,4 @@
 - [loadBalancer module add unit test.](https://github.com/Tencent/spring-cloud-tencent/pull/468)
 - [docs:update mvnw.](https://github.com/Tencent/spring-cloud-tencent/pull/475)
 - [docs:update configuration metadata.](https://github.com/Tencent/spring-cloud-tencent/pull/473)
+- [Feature: delete implement ServiceInstance](https://github.com/Tencent/spring-cloud-tencent/pull/482)
\ No newline at end of file
diff --git a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisRegistration.java b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisRegistration.java
index d893836a6..835b84bac 100644
--- a/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisRegistration.java
+++ b/spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisRegistration.java
@@ -30,7 +30,6 @@ import com.tencent.polaris.client.api.SDKContext;
 import org.apache.commons.lang.StringUtils;
 
 import org.springframework.cloud.client.DefaultServiceInstance;
-import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.client.serviceregistry.Registration;
 import org.springframework.lang.Nullable;
 import org.springframework.util.CollectionUtils;
@@ -40,7 +39,7 @@ import org.springframework.util.CollectionUtils;
  *
  * @author Haotian Zhang, Andrew Shan, Jie Cheng
  */
-public class PolarisRegistration implements Registration, ServiceInstance {
+public class PolarisRegistration implements Registration {
 
 	private static final String METADATA_KEY_IP = "internal-ip";
 	private static final String METADATA_KEY_ADDRESS = "internal-address";