diff --git a/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java b/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
index 2951edb8e..4fcb9f8a3 100644
--- a/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
+++ b/registry/registry-nacos/src/main/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelper.java
@@ -123,6 +123,13 @@ static List<ProviderInfo> convertInstancesToProviders(List<Instance> allInstance
         for (Instance instance : allInstances) {
             String url = convertInstanceToUrl(instance);
             ProviderInfo providerInfo = ProviderHelper.toProviderInfo(url);
+
+            // Nacos的默认权重为1.0
+            // 当Nacos默认权重传入1.0，根据代码逻辑计算结果为100，与sofa-rpc默认权重一致
+            // 因为是接口级别，如果不同的服务具有不同的权重也不会出现被覆盖或者冲突的情况
+            long weight = Math.round(providerInfo.getWeight() * instance.getWeight());
+            providerInfo.setWeight(Math.round(weight));
+
             providerInfos.add(providerInfo);
         }
         return providerInfos;
diff --git a/registry/registry-nacos/src/test/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelperTest.java b/registry/registry-nacos/src/test/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelperTest.java
index 8a38cbf0e..385ee3dab 100644
--- a/registry/registry-nacos/src/test/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelperTest.java
+++ b/registry/registry-nacos/src/test/java/com/alipay/sofa/rpc/registry/nacos/NacosRegistryHelperTest.java
@@ -136,4 +136,61 @@ public void buildServiceName() {
         serviceName = NacosRegistryHelper.buildServiceName(provider, RpcConstants.PROTOCOL_TYPE_REST);
         assertEquals(serviceName, "com.alipay.xxx.TestService:nacos-test:" + RpcConstants.PROTOCOL_TYPE_REST);
     }
-}
\ No newline at end of file
+
+    @Test
+    public void testNacosWeight() {
+        Instance instance = new Instance();
+        instance.setClusterName(NacosRegistryHelper.DEFAULT_CLUSTER);
+        instance.setIp("1.1.1.1");
+        instance.setPort(12200);
+        instance.setServiceName("com.alipay.xxx.TestService");
+        instance.setWeight(0.99D);
+
+        List<ProviderInfo> providerInfos = NacosRegistryHelper
+            .convertInstancesToProviders(Lists.newArrayList(instance));
+        assertNotNull(providerInfos);
+        assertEquals(1, providerInfos.size());
+
+        ProviderInfo providerInfo = providerInfos.get(0);
+        assertNotNull(providerInfo);
+        assertEquals(99, providerInfo.getWeight());
+    }
+
+    @Test
+    public void testNacosWeightLessThan0() {
+        Instance instance = new Instance();
+        instance.setClusterName(NacosRegistryHelper.DEFAULT_CLUSTER);
+        instance.setIp("1.1.1.1");
+        instance.setPort(12200);
+        instance.setServiceName("com.alipay.xxx.TestService");
+        instance.setWeight(-0.1D);
+
+        List<ProviderInfo> providerInfos = NacosRegistryHelper
+            .convertInstancesToProviders(Lists.newArrayList(instance));
+        assertNotNull(providerInfos);
+        assertEquals(1, providerInfos.size());
+
+        ProviderInfo providerInfo = providerInfos.get(0);
+        assertNotNull(providerInfo);
+        assertEquals(-10, providerInfo.getWeight());
+    }
+
+    @Test
+    public void testNacosWeightWith0() {
+        Instance instance = new Instance();
+        instance.setClusterName(NacosRegistryHelper.DEFAULT_CLUSTER);
+        instance.setIp("1.1.1.1");
+        instance.setPort(12200);
+        instance.setServiceName("com.alipay.xxx.TestService");
+        instance.setWeight(0.0D);
+
+        List<ProviderInfo> providerInfos = NacosRegistryHelper
+            .convertInstancesToProviders(Lists.newArrayList(instance));
+        assertNotNull(providerInfos);
+        assertEquals(1, providerInfos.size());
+
+        ProviderInfo providerInfo = providerInfos.get(0);
+        assertNotNull(providerInfo);
+        assertEquals(0, providerInfo.getWeight());
+    }
+}
diff --git a/tracer/tracer-opentracing/src/test/java/com/alipay/sofa/rpc/event/SofaTracerSubscriberTest.java b/test/test-integration/src/test/java/com/alipay/sofa/rpc/tracer/sofatracer/SofaTracerSubscriberTest.java
similarity index 91%
rename from tracer/tracer-opentracing/src/test/java/com/alipay/sofa/rpc/event/SofaTracerSubscriberTest.java
rename to test/test-integration/src/test/java/com/alipay/sofa/rpc/tracer/sofatracer/SofaTracerSubscriberTest.java
index 4c46faa73..5f9b78b84 100644
--- a/tracer/tracer-opentracing/src/test/java/com/alipay/sofa/rpc/event/SofaTracerSubscriberTest.java
+++ b/test/test-integration/src/test/java/com/alipay/sofa/rpc/tracer/sofatracer/SofaTracerSubscriberTest.java
@@ -14,19 +14,20 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package com.alipay.sofa.rpc.event;
+package com.alipay.sofa.rpc.tracer.sofatracer;
 
 import com.alipay.common.tracer.core.holder.SofaTraceContextHolder;
 import com.alipay.common.tracer.core.span.SofaTracerSpan;
 import com.alipay.sofa.rpc.common.RemotingConstants;
-import com.alipay.sofa.rpc.common.RpcOptions;
 import com.alipay.sofa.rpc.context.RpcInternalContext;
 import com.alipay.sofa.rpc.core.request.SofaRequest;
+import com.alipay.sofa.rpc.event.ClientBeforeSendEvent;
+import com.alipay.sofa.rpc.event.ClientStartInvokeEvent;
+import com.alipay.sofa.rpc.event.EventBus;
+import com.alipay.sofa.rpc.event.ServerReceiveEvent;
 import com.alipay.sofa.rpc.tracer.sofatracer.log.tags.RpcSpanTags;
 import io.opentracing.tag.Tags;
-import org.junit.AfterClass;
 import org.junit.Assert;
-import org.junit.BeforeClass;
 import org.junit.Test;
 
 import java.util.Map;
@@ -41,11 +42,6 @@
  */
 public class SofaTracerSubscriberTest {
 
-    @BeforeClass
-    public static void beforeClass() {
-        System.getProperties().put(RpcOptions.DEFAULT_TRACER, "sofaTracer");
-    }
-
     @Test
     public void testClientSendAndServerReceiveTracerEvent() {
         SofaRequest sofaRequest = new SofaRequest();
@@ -85,9 +81,4 @@ public void testClientSendAndServerReceiveTracerEvent() {
         SofaTraceContextHolder.getSofaTraceContext().clear();
     }
 
-    @AfterClass
-    public static void afterClass() {
-        System.getProperties().remove(RpcOptions.DEFAULT_TRACER);
-    }
-
 }
\ No newline at end of file
diff --git a/test/test-integration/src/test/resources/sofa-rpc/rpc-config.json b/test/test-integration/src/test/resources/sofa-rpc/rpc-config.json
index 5b573549a..786432c70 100644
--- a/test/test-integration/src/test/resources/sofa-rpc/rpc-config.json
+++ b/test/test-integration/src/test/resources/sofa-rpc/rpc-config.json
@@ -1,4 +1,5 @@
 {
   "rpc.config.order": 999,
-  "logger.impl": "com.alipay.sofa.rpc.log.SLF4JLoggerImpl"
+  "logger.impl": "com.alipay.sofa.rpc.log.SLF4JLoggerImpl",
+  "default.tracer": "sofaTracer"
 }
\ No newline at end of file