diff --git a/app/Http/Controllers/Api/DialogController.php b/app/Http/Controllers/Api/DialogController.php
index a6ca86422..e8aeaa76d 100755
--- a/app/Http/Controllers/Api/DialogController.php
+++ b/app/Http/Controllers/Api/DialogController.php
@@ -37,6 +37,7 @@ class DialogController extends AbstractController
      * @apiName lists
      *
      * @apiParam {String} [at_after]        只读取在这个时间之后更新的对话
+     * @apiParam {String} [deleted_at]      读取在这个时间之后删除的对话ID，返回数据: deleted_data
      * @apiParam {Number} [page]            当前页，默认:1
      * @apiParam {Number} [pagesize]        每页显示数量，默认:50，最大:100
      *
@@ -62,7 +63,19 @@ class DialogController extends AbstractController
             return $item->formatData($user->userid);
         });
         //
-        return Base::retSuccess('success', $list);
+        $data = $list->toArray();
+        if (Request::exists('deleted_at')) {
+            $data['deleted_at'] = date("Y-m-d H:i:s");
+            $data['deleted_data'] = WebSocketDialog::select(['web_socket_dialogs.id'])
+                ->withTrashed()
+                ->join('web_socket_dialog_users as u', 'web_socket_dialogs.id', '=', 'u.dialog_id')
+                ->where('u.userid', $user->userid)
+                ->where('web_socket_dialogs.deleted_at', '>=', Carbon::parse(Request::input('deleted_at')))
+                ->take(100)
+                ->pluck('id');
+        }
+        //
+        return Base::retSuccess('success', $data);
     }
 
     /**
diff --git a/app/Models/Project.php b/app/Models/Project.php
index 450be1ec6..1c753a130 100644
--- a/app/Models/Project.php
+++ b/app/Models/Project.php
@@ -281,6 +281,7 @@ class Project extends AbstractModel
         AbstractModel::transaction(function () {
             $dialog = WebSocketDialog::find($this->dialog_id);
             $dialog?->deleteDialog();
+            $dialog?->pushMsg("groupDelete");
             $columns = ProjectColumn::whereProjectId($this->id)->get();
             foreach ($columns as $column) {
                 $column->deleteColumn(false);
diff --git a/app/Models/ProjectTask.php b/app/Models/ProjectTask.php
index 5b37b91d5..202eb6378 100644
--- a/app/Models/ProjectTask.php
+++ b/app/Models/ProjectTask.php
@@ -1281,6 +1281,7 @@ class ProjectTask extends AbstractModel
             if ($this->dialog_id) {
                 $dialog = WebSocketDialog::find($this->dialog_id);
                 $dialog?->deleteDialog();
+                $dialog?->pushMsg("groupDelete");
             }
             self::whereParentId($this->id)->delete();
             $this->deleted_userid = User::userid();
diff --git a/resources/assets/js/store/actions.js b/resources/assets/js/store/actions.js
index 6a4c7c6c4..234934472 100644
--- a/resources/assets/js/store/actions.js
+++ b/resources/assets/js/store/actions.js
@@ -2117,6 +2117,9 @@ export default {
                     data.at_after = tmpList[0].last_at;
                 }
             }
+            if (state.dialogDeletedAt || data.at_after) {
+                data.deleted_at = state.dialogDeletedAt = state.dialogDeletedAt || data.at_after
+            }
             dispatch("call", {
                 url: 'dialog/lists',
                 data,
@@ -2124,6 +2127,11 @@ export default {
                 const resData = result.data;
                 dispatch("saveDialog", resData.data);
                 //
+                if (resData.deleted_at) {
+                    state.dialogDeletedAt = resData.deleted_at
+                    resData.deleted_data.some(id => dispatch("forgetDialog", id))
+                }
+                //
                 if (resData.next_page_url && resData.current_page < 5) {
                     data.page++
                     dispatch("getDialogs", data).then(resolve).catch(reject)
diff --git a/resources/assets/js/store/state.js b/resources/assets/js/store/state.js
index 8a6e660b9..13dc096a9 100644
--- a/resources/assets/js/store/state.js
+++ b/resources/assets/js/store/state.js
@@ -82,6 +82,7 @@ export default {
     dialogHistory: [],
     dialogInputCache: [],
     dialogMsgTransfer: {time: 0},
+    dialogDeletedAt: null,
 
     // 文件
     fileLists: [],