diff --git a/CHANGELOG.md b/CHANGELOG.md
index b22a8c105..eaeb23b0f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,3 +12,4 @@
 - [fix: fix loadbalancer metadata type.](https://github.com/Tencent/spring-cloud-tencent/pull/1626)
 - [feat:support polaris server nearby backup LB.](https://github.com/Tencent/spring-cloud-tencent/pull/1630)
 - fix:fix ipv6 instance not found bug.
+- fix:fix tsf lossless not working bug.
diff --git a/spring-cloud-tencent-examples/tsf-example/consumer-demo/pom.xml b/spring-cloud-tencent-examples/tsf-example/consumer-demo/pom.xml
index 04f4a8314..026d8b065 100644
--- a/spring-cloud-tencent-examples/tsf-example/consumer-demo/pom.xml
+++ b/spring-cloud-tencent-examples/tsf-example/consumer-demo/pom.xml
@@ -26,5 +26,10 @@
 			<groupId>org.springframework.cloud</groupId>
 			<artifactId>spring-cloud-starter-openfeign</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-bootstrap</artifactId>
+		</dependency>
 	</dependencies>
 </project>
\ No newline at end of file
diff --git a/spring-cloud-tencent-examples/tsf-example/consumer-demo/src/main/resources/application.yml b/spring-cloud-tencent-examples/tsf-example/consumer-demo/src/main/resources/bootstrap.yml
similarity index 100%
rename from spring-cloud-tencent-examples/tsf-example/consumer-demo/src/main/resources/application.yml
rename to spring-cloud-tencent-examples/tsf-example/consumer-demo/src/main/resources/bootstrap.yml
diff --git a/spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/config/extend/tsf/TsfCoreEnvironmentPostProcessor.java b/spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/config/extend/tsf/TsfCoreEnvironmentPostProcessor.java
index a55adaba1..d50aa11fb 100644
--- a/spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/config/extend/tsf/TsfCoreEnvironmentPostProcessor.java
+++ b/spring-cloud-tencent-polaris-context/src/main/java/com/tencent/cloud/polaris/context/config/extend/tsf/TsfCoreEnvironmentPostProcessor.java
@@ -72,6 +72,8 @@ public final class TsfCoreEnvironmentPostProcessor implements EnvironmentPostPro
 			String polarisAdminPort = environment.getProperty("polaris_admin_port");
 			if (StringUtils.isNotBlank(polarisAdminPort)) {
 				defaultProperties.put("spring.cloud.polaris.lossless.enabled", environment.getProperty("spring.cloud.polaris.lossless.enabled", "true"));
+				// for tsf health check.
+				defaultProperties.put("spring.cloud.polaris.stat.enabled", environment.getProperty("spring.cloud.polaris.stat.enabled", "true"));
 			}
 
 			String tsfPreferIpv6 = environment.getProperty("tsf_prefer_ipv6");