diff --git a/common/src/main/java/com/github/dynamic/threadpool/common/model/InstanceInfo.java b/common/src/main/java/com/github/dynamic/threadpool/common/model/InstanceInfo.java
index 814caa45..28ac5c92 100644
--- a/common/src/main/java/com/github/dynamic/threadpool/common/model/InstanceInfo.java
+++ b/common/src/main/java/com/github/dynamic/threadpool/common/model/InstanceInfo.java
@@ -24,6 +24,8 @@ public class InstanceInfo {
 
     private String hostName;
 
+    private String groupKey;
+
     private String port;
 
     private String instanceId;
diff --git a/common/src/main/java/com/github/dynamic/threadpool/common/toolkit/ContentUtil.java b/common/src/main/java/com/github/dynamic/threadpool/common/toolkit/ContentUtil.java
index 2ad70a79..3f01ff6f 100644
--- a/common/src/main/java/com/github/dynamic/threadpool/common/toolkit/ContentUtil.java
+++ b/common/src/main/java/com/github/dynamic/threadpool/common/toolkit/ContentUtil.java
@@ -41,4 +41,17 @@ public class ContentUtil {
         return resultStr;
     }
 
+    public static String getGroupKey(String... parameters) {
+        StringBuilder stringBuilder = new StringBuilder();
+        for (int i = 0; i < parameters.length; i++) {
+            stringBuilder.append(parameters[i]);
+
+            if (i < parameters.length - 1) {
+                stringBuilder.append(Constants.GROUP_KEY_DELIMITER);
+            }
+        }
+
+        return stringBuilder.toString();
+    }
+
 }