diff --git a/common/src/main/java/cn/wildfirechat/common/APIPath.java b/common/src/main/java/cn/wildfirechat/common/APIPath.java
index 80795d66..6f8ee82f 100644
--- a/common/src/main/java/cn/wildfirechat/common/APIPath.java
+++ b/common/src/main/java/cn/wildfirechat/common/APIPath.java
@@ -52,7 +52,6 @@ public interface APIPath {
     String Channel_Update_Profile = "/channel/update_profile";
     String Channel_Message_Send = "/channel/message/send";
     String Channel_Subscribe = "/channel/subscribe";
-    String Channel_Unsubscribe = "/channel/unsubscribe";
     String Channel_Subscriber_List = "/channel/subscriber_list";
 
     String Robot_User_Info = "/robot/user_info";
diff --git a/common/src/main/java/cn/wildfirechat/pojos/InputChannelSubscribe.java b/common/src/main/java/cn/wildfirechat/pojos/InputChannelSubscribe.java
index 40d4c9bf..7c4178da 100644
--- a/common/src/main/java/cn/wildfirechat/pojos/InputChannelSubscribe.java
+++ b/common/src/main/java/cn/wildfirechat/pojos/InputChannelSubscribe.java
@@ -15,15 +15,15 @@ import java.util.ArrayList;
 import java.util.List;
 
 public class InputChannelSubscribe {
-    private List<String> targets;
+    private String target;
     private int subscribe; //1，订阅；0，取消订阅
 
-    public List<String> getTargets() {
-        return targets;
+    public String getTarget() {
+        return target;
     }
 
-    public void setTargets(List<String> targets) {
-        this.targets = targets;
+    public void setTarget(String target) {
+        this.target = target;
     }
 
     public int getSubscribe() {
diff --git a/sdk/src/main/java/cn/wildfirechat/sdk/ChannelServiceApi.java b/sdk/src/main/java/cn/wildfirechat/sdk/ChannelServiceApi.java
index af27e6c8..1f6270df 100644
--- a/sdk/src/main/java/cn/wildfirechat/sdk/ChannelServiceApi.java
+++ b/sdk/src/main/java/cn/wildfirechat/sdk/ChannelServiceApi.java
@@ -41,18 +41,18 @@ public class ChannelServiceApi {
         return httpUtils.httpJsonPost(path, messageData, SendMessageResult.class);
     }
 
-    public IMResult<Void> subscribe(List<String> targets) throws Exception {
+    public IMResult<Void> subscribe(String target) throws Exception {
         String path = APIPath.Channel_Subscribe;
         InputChannelSubscribe input = new InputChannelSubscribe();
-        input.setTargets(targets);
+        input.setTarget(target);
         input.setSubscribe(1);
         return httpUtils.httpJsonPost(path, input, Void.class);
     }
 
-    public IMResult<Void> unsubscribe(List<String> targets) throws Exception {
-        String path = APIPath.Channel_Unsubscribe;
+    public IMResult<Void> unsubscribe(String target) throws Exception {
+        String path = APIPath.Channel_Subscribe;
         InputChannelSubscribe input = new InputChannelSubscribe();
-        input.setTargets(targets);
+        input.setTarget(target);
         input.setSubscribe(0);
         return httpUtils.httpJsonPost(path, input, Void.class);
     }
diff --git a/sdk/src/main/java/cn/wildfirechat/sdk/Main.java b/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
index 2dce8a79..ad609016 100644
--- a/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
+++ b/sdk/src/main/java/cn/wildfirechat/sdk/Main.java
@@ -510,7 +510,15 @@ public class Main {
         ChannelServiceApi channelServiceApi = new ChannelServiceApi("http://localhost", inputCreateChannel.getTargetId(), inputCreateChannel.getSecret());
 
         //3. 测试channel api功能
-        resultVoid = channelServiceApi.subscribe(Arrays.asList("user2","user3"));
+        resultVoid = channelServiceApi.subscribe("user2");
+        if (resultVoid != null && resultVoid.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
+            System.out.println("block user done");
+        } else {
+            System.out.println("block user failure");
+            System.exit(-1);
+        }
+
+        resultVoid = channelServiceApi.subscribe("user3");
         if (resultVoid != null && resultVoid.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
             System.out.println("block user done");
         } else {
@@ -526,7 +534,7 @@ public class Main {
             System.exit(-1);
         }
 
-        resultVoid = channelServiceApi.unsubscribe(Arrays.asList("user2"));
+        resultVoid = channelServiceApi.unsubscribe("user2");
         if (resultVoid != null && resultVoid.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS) {
             System.out.println("block user done");
         } else {
@@ -535,7 +543,7 @@ public class Main {
         }
 
         resultStringList = channelServiceApi.getSubscriberList();
-        if (resultStringList != null && resultStringList.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS && resultStringList.getResult().getList().contains("user2") && !resultStringList.getResult().getList().contains("user3")) {
+        if (resultStringList != null && resultStringList.getErrorCode() == ErrorCode.ERROR_CODE_SUCCESS && resultStringList.getResult().getList().contains("user3") && !resultStringList.getResult().getList().contains("user2")) {
             System.out.println("block user done");
         } else {
             System.out.println("block user failure");