diff --git a/CHANGELOG.md b/CHANGELOG.md
index d61f2244d..799dbaff5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,3 +25,4 @@
 - [Standardize the name of method to create bean.](https://github.com/Tencent/spring-cloud-tencent/pull/779)
 - [set reporter.enabled default to true](https://github.com/Tencent/spring-cloud-tencent/pull/784)
 - [fix:fix nacos enabled condition bugs.](https://github.com/Tencent/spring-cloud-tencent/pull/793)
+- [fix:fix instance's weight hard code to 100 bug.](https://github.com/Tencent/spring-cloud-tencent/pull/802)
diff --git a/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtils.java b/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtils.java
index 820c7a0b3..91078a05e 100644
--- a/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtils.java
+++ b/spring-cloud-tencent-polaris-loadbalancer/src/main/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtils.java
@@ -47,7 +47,6 @@ import org.springframework.util.CollectionUtils;
 public final class LoadBalancerUtils {
 	private static final Logger LOGGER = LoggerFactory.getLogger(LoadBalancerUtils.class);
 
-	private static final int DEFAULT_WEIGHT = 100;
 	private static final int WAIT_TIME = 3;
 
 	private LoadBalancerUtils() {
@@ -104,7 +103,6 @@ public final class LoadBalancerUtils {
 		instance.setId(serviceInstance.getInstanceId());
 		instance.setHost(serviceInstance.getHost());
 		instance.setPort(serviceInstance.getPort());
-		instance.setWeight(DEFAULT_WEIGHT);
 		instance.setMetadata(serviceInstance.getMetadata());
 
 		if (serviceInstance instanceof PolarisServiceInstance) {
@@ -112,6 +110,8 @@ public final class LoadBalancerUtils {
 			instance.setRegion(polarisServiceInstance.getPolarisInstance().getRegion());
 			instance.setZone(polarisServiceInstance.getPolarisInstance().getZone());
 			instance.setCampus(polarisServiceInstance.getPolarisInstance().getCampus());
+			instance.setWeight(polarisServiceInstance.getPolarisInstance().getWeight());
+
 		}
 
 		return instance;
diff --git a/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtilsTest.java b/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtilsTest.java
index b4aea4c00..130eec813 100644
--- a/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtilsTest.java
+++ b/spring-cloud-tencent-polaris-loadbalancer/src/test/java/com/tencent/cloud/polaris/loadbalancer/LoadBalancerUtilsTest.java
@@ -23,7 +23,9 @@ import java.util.List;
 
 import com.tencent.cloud.common.metadata.MetadataContext;
 import com.tencent.cloud.common.metadata.MetadataContextHolder;
+import com.tencent.cloud.common.pojo.PolarisServiceInstance;
 import com.tencent.cloud.common.util.ApplicationContextAwareUtils;
+import com.tencent.polaris.api.pojo.DefaultInstance;
 import com.tencent.polaris.api.pojo.Instance;
 import com.tencent.polaris.api.pojo.ServiceInstances;
 import org.junit.AfterClass;
@@ -36,7 +38,6 @@ import org.mockito.Mockito;
 import org.mockito.junit.MockitoJUnitRunner;
 import reactor.core.publisher.Flux;
 
-import org.springframework.cloud.client.DefaultServiceInstance;
 import org.springframework.cloud.client.ServiceInstance;
 
 import static org.mockito.ArgumentMatchers.anyString;
@@ -49,7 +50,7 @@ import static org.mockito.ArgumentMatchers.anyString;
 @RunWith(MockitoJUnitRunner.class)
 public class LoadBalancerUtilsTest {
 
-	private static final String TEST_NAMESPACE_AND_SERVICE = "testNamespaceAndService";
+	private static final String testNamespaceAndService = "testNamespaceAndService";
 	private static MockedStatic<ApplicationContextAwareUtils> mockedApplicationContextAwareUtils;
 	private static MockedStatic<MetadataContextHolder> mockedMetadataContextHolder;
 
@@ -57,7 +58,7 @@ public class LoadBalancerUtilsTest {
 	public static void beforeClass() {
 		mockedApplicationContextAwareUtils = Mockito.mockStatic(ApplicationContextAwareUtils.class);
 		mockedApplicationContextAwareUtils.when(() -> ApplicationContextAwareUtils.getProperties(anyString()))
-				.thenReturn(TEST_NAMESPACE_AND_SERVICE);
+				.thenReturn(testNamespaceAndService);
 
 		MetadataContext metadataContext = Mockito.mock(MetadataContext.class);
 		mockedMetadataContextHolder = Mockito.mockStatic(MetadataContextHolder.class);
@@ -80,11 +81,17 @@ public class LoadBalancerUtilsTest {
 	@Test
 	public void testTransferNotEmptyInstances() {
 		int instanceSize = 100;
+		int weight = 50;
 
 		List<ServiceInstance> instances = new ArrayList<>();
 		for (int i = 0; i < instanceSize; i++) {
-			instances.add(new DefaultServiceInstance("ins" + i, TEST_NAMESPACE_AND_SERVICE, "127.0.0." + i,
-					8080, false));
+			DefaultInstance instance = new DefaultInstance();
+			instance.setService(testNamespaceAndService);
+			instance.setId("ins" + i);
+			instance.setPort(8080);
+			instance.setHost("127.0.0." + i);
+			instance.setWeight(weight);
+			instances.add(new PolarisServiceInstance(instance));
 		}
 
 		ServiceInstances serviceInstances = LoadBalancerUtils.transferServersToServiceInstances(Flux.just(instances));
@@ -95,12 +102,12 @@ public class LoadBalancerUtilsTest {
 		List<Instance> polarisInstances = serviceInstances.getInstances();
 		for (int i = 0; i < instanceSize; i++) {
 			Instance instance = polarisInstances.get(i);
-			Assert.assertEquals(TEST_NAMESPACE_AND_SERVICE, instance.getNamespace());
-			Assert.assertEquals(TEST_NAMESPACE_AND_SERVICE, instance.getService());
+			Assert.assertEquals(testNamespaceAndService, instance.getNamespace());
+			Assert.assertEquals(testNamespaceAndService, instance.getService());
 			Assert.assertEquals("ins" + i, instance.getId());
 			Assert.assertEquals("127.0.0." + i, instance.getHost());
 			Assert.assertEquals(8080, instance.getPort());
-			Assert.assertEquals(100, instance.getWeight());
+			Assert.assertEquals(weight, instance.getWeight());
 		}
 	}
 }