diff --git a/test/src/test/java/com/alibaba/nacos/test/config/ConfigAPI_ITCase.java b/test/src/test/java/com/alibaba/nacos/test/config/ConfigAPI_ITCase.java
index 90f1b9d43..364e02a6f 100644
--- a/test/src/test/java/com/alibaba/nacos/test/config/ConfigAPI_ITCase.java
+++ b/test/src/test/java/com/alibaba/nacos/test/config/ConfigAPI_ITCase.java
@@ -385,6 +385,7 @@ public class ConfigAPI_ITCase {
         final AtomicInteger count = new AtomicInteger(0);
         final String content = "test-abc";
         boolean result = iconfig.publishConfig(dataId, group, content);
+        Thread.sleep(TIME_OUT);
         Assert.assertTrue(result);
 
         Listener ml = new AbstractListener() {
diff --git a/test/src/test/java/com/alibaba/nacos/test/naming/DeregisterInstance_ITCase.java b/test/src/test/java/com/alibaba/nacos/test/naming/DeregisterInstance_ITCase.java
index e88729082..5faddbb9b 100644
--- a/test/src/test/java/com/alibaba/nacos/test/naming/DeregisterInstance_ITCase.java
+++ b/test/src/test/java/com/alibaba/nacos/test/naming/DeregisterInstance_ITCase.java
@@ -159,7 +159,7 @@ public class DeregisterInstance_ITCase {
         verifyInstanceList(instances, 2, serviceName);
 
         instances = naming.getAllInstances(serviceName);
-        Assert.assertEquals(instances.size(), 2);
+        Assert.assertEquals(2, instances.size());
 
         naming.deregisterInstance(serviceName, "127.0.0.1", TEST_PORT, "c1");
 
@@ -167,15 +167,15 @@ public class DeregisterInstance_ITCase {
 
         instances = naming.getAllInstances(serviceName);
 
-        Assert.assertEquals(instances.size(), 1);
+        Assert.assertEquals(1, instances.size());
 
         instances = naming.getAllInstances(serviceName, Arrays.asList("c2"));
-        Assert.assertEquals(instances.size(), 1);
+        Assert.assertEquals(1, instances.size());
 
         naming.deregisterInstance(serviceName,"127.0.0.2", TEST_PORT, "c2");
         TimeUnit.SECONDS.sleep(5);
         instances = naming.getAllInstances(serviceName);
-        Assert.assertEquals(instances.size(), 0);
+        Assert.assertEquals(0, instances.size());
     }
 
     public void verifyInstanceList(List<Instance> instances, int size, String serviceName) throws Exception {
diff --git a/test/src/test/java/com/alibaba/nacos/test/naming/NamingBase.java b/test/src/test/java/com/alibaba/nacos/test/naming/NamingBase.java
index b87282fe5..a76fc785a 100644
--- a/test/src/test/java/com/alibaba/nacos/test/naming/NamingBase.java
+++ b/test/src/test/java/com/alibaba/nacos/test/naming/NamingBase.java
@@ -56,6 +56,8 @@ public class NamingBase {
 
     public static final int TEST_PORT = 8080;
 
+    public static final int TIME_OUT = 3000;
+
     public static String randomDomainName() {
         StringBuilder sb = new StringBuilder();
         sb.append("jinhan");
diff --git a/test/src/test/java/com/alibaba/nacos/test/naming/Subscribe_ITCase.java b/test/src/test/java/com/alibaba/nacos/test/naming/Subscribe_ITCase.java
index b08fb9117..c1fe26ccb 100644
--- a/test/src/test/java/com/alibaba/nacos/test/naming/Subscribe_ITCase.java
+++ b/test/src/test/java/com/alibaba/nacos/test/naming/Subscribe_ITCase.java
@@ -28,6 +28,7 @@ import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.omg.CORBA.TIMEOUT;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.web.server.LocalServerPort;
 import org.springframework.http.HttpEntity;
@@ -169,7 +170,7 @@ public class Subscribe_ITCase extends RestAPI_ITCase {
         Assert.assertTrue(verifyInstanceList(instances, naming.getAllInstances(serviceName)));
     }
 
-    @Test
+    @Test(timeout = 20*TIME_OUT)
     public void subscribeEmpty() throws Exception {
 
         String serviceName = randomDomainName();