diff --git a/Yep/Realm/Models.swift b/Yep/Realm/Models.swift
index 81af2d6a..29b8737d 100644
--- a/Yep/Realm/Models.swift
+++ b/Yep/Realm/Models.swift
@@ -1118,7 +1118,7 @@ func deleteConversation(conversation: Conversation, inRealm realm: Realm, needLe
     }
 }
 
-func tryDeleteOrClearHistoryOfConversation(conversation: Conversation, inViewController vc: UIViewController?, whenAfterClearedHistory afterClearedHistory: () -> Void, afterDeleted: () -> Void, orCanceled cancelled: () -> Void) {
+func tryDeleteOrClearHistoryOfConversation(conversation: Conversation, inViewController vc: UIViewController, whenAfterClearedHistory afterClearedHistory: () -> Void, afterDeleted: () -> Void, orCanceled cancelled: () -> Void) {
 
     guard let realm = conversation.realm else {
         cancelled()
@@ -1159,12 +1159,6 @@ func tryDeleteOrClearHistoryOfConversation(conversation: Conversation, inViewCon
     }
     deleteAlertController.addAction(cancelAction)
     
-    if let vc = vc {
-        vc.presentViewController(deleteAlertController, animated: true, completion: nil)
-    } else {
-        delete()
-        
-        afterDeleted()
-    }
+    vc.presentViewController(deleteAlertController, animated: true, completion: nil)
 }
 
diff --git a/Yep/Services/YepService.swift b/Yep/Services/YepService.swift
index 52a3b1dd..dd587ec7 100644
--- a/Yep/Services/YepService.swift
+++ b/Yep/Services/YepService.swift
@@ -2475,6 +2475,21 @@ func createFeedWithMessage(message: String, attachments: JSONDictionary?, coordi
     }
 }
 
+func deleteFeedWithFeedID(feedID: String, failureHandler: ((Reason, String?) -> Void)?, completion: () -> Void) {
+
+    let parse: JSONDictionary -> ()? = { data in
+        return
+    }
+
+    let resource = authJsonResource(path: "/api/v1/topics/\(feedID)", method: .DELETE, requestParameters: [:], parse: parse)
+
+    if let failureHandler = failureHandler {
+        apiRequest({_ in}, baseURL: baseURL, resource: resource, failure: failureHandler, completion: completion)
+    } else {
+        apiRequest({_ in}, baseURL: baseURL, resource: resource, failure: defaultFailureHandler, completion: completion)
+    }
+}
+
 // MARK: - Social Work
 
 func authURLRequestWithURL(url: NSURL) -> NSURLRequest {
diff --git a/Yep/ViewControllers/Conversation/ConversationViewController.swift b/Yep/ViewControllers/Conversation/ConversationViewController.swift
index 7c991ffe..2a9ce562 100644
--- a/Yep/ViewControllers/Conversation/ConversationViewController.swift
+++ b/Yep/ViewControllers/Conversation/ConversationViewController.swift
@@ -1558,39 +1558,53 @@ class ConversationViewController: BaseViewController {
         
         moreView.unsubscribeAction = { [weak self] in
             
-            dispatch_async(dispatch_get_main_queue()) { [weak self] in
-                
-                if let checkTypingStatusTimer = self?.checkTypingStatusTimer {
-                    checkTypingStatusTimer.invalidate()
-                }
-            
-                guard let conversation = self?.conversation else {
-                    return
-                }
-                
-                tryDeleteOrClearHistoryOfConversation(conversation, inViewController: nil, whenAfterClearedHistory: {
-                    
-                    
-                    dispatch_async(dispatch_get_main_queue()) {
-                        NSNotificationCenter.defaultCenter().postNotificationName(YepConfig.Notification.changedConversation, object: nil)
-                    }
-                    
-                }, afterDeleted: {
-                        
-                        dispatch_async(dispatch_get_main_queue()) {
-                            NSNotificationCenter.defaultCenter().postNotificationName(YepConfig.Notification.changedConversation, object: nil)
-                        }
-                        
-                }, orCanceled: {
+            let doDeleteConversation: () -> Void = {
 
-                })
-                
-                
-                self?.navigationController?.popViewControllerAnimated(true)
+                dispatch_async(dispatch_get_main_queue()) { [weak self] in
+                    if let checkTypingStatusTimer = self?.checkTypingStatusTimer {
+                        checkTypingStatusTimer.invalidate()
+                    }
+
+                    guard let conversation = self?.conversation, realm = conversation.realm else {
+                        return
+                    }
+
+                    deleteConversation(conversation, inRealm: realm)
+
+                    NSNotificationCenter.defaultCenter().postNotificationName(YepConfig.Notification.changedConversation, object: nil)
+
+                    self?.navigationController?.popViewControllerAnimated(true)
+                }
             }
 
+            guard let feed = self?.conversation.withGroup?.withFeed, feedCreator = feed.creator else {
+                return
+            }
+
+            let feedID = feed.feedID
+            let feedCreatorID = feedCreator.userID
+
+            // 若是创建者，再询问是否删除 Feed
+
+            if feedCreatorID == YepUserDefaults.userID.value {
+
+                YepAlert.confirmOrCancel(title: NSLocalizedString("Delete", comment: ""), message: NSLocalizedString("Also delete this feed?", comment: ""), confirmTitle: NSLocalizedString("Delete", comment: ""), cancelTitle: NSLocalizedString("Not now", comment: ""), inViewController: self, withConfirmAction: {
+
+                    doDeleteConversation()
+
+                    deleteFeedWithFeedID(feedID, failureHandler: nil, completion: {
+                        println("deleted feed: \(feedID)")
+                    })
+
+                }, cancelAction: {
+                    doDeleteConversation()
+                })
+
+            } else {
+                doDeleteConversation()
+            }
         }
-        
+
         moreView.shareAction = { [weak self] in
             
             guard let groupID = groupID, descriotion = descriotion else {