diff --git a/static/src/App.vue b/static/src/App.vue
index 594f3ae2..b3a7fd95 100644
--- a/static/src/App.vue
+++ b/static/src/App.vue
@@ -303,7 +303,6 @@
               :goal-running="goalRunning"
               :goal-progress="goalProgress"
               :multi-agent-mode="multiAgentMode"
-              :has-running-task="composerBusy || anyWorkspaceHasRunningTask"
               :main-chat-idle="mainChatIdle"
               :active-sub-agent-count="activeSubAgentCount"
               :avatar-status="showStatusAvatar && messages.length > 0 ? avatarStatus : null"
diff --git a/static/src/app/computed.ts b/static/src/app/computed.ts
index 4cfb9885..c5f8b252 100644
--- a/static/src/app/computed.ts
+++ b/static/src/app/computed.ts
@@ -247,13 +247,6 @@ export const computed = {
       );
     });
   },
-  anyWorkspaceHasRunningTask() {
-    const tasks = Array.isArray(this.runningWorkspaceTasks) ? this.runningWorkspaceTasks : [];
-    return tasks.some((task: any) => {
-      const status = String(task?.status || '');
-      return ['pending', 'running', 'cancel_requested'].includes(status);
-    });
-  },
   streamingUi() {
     return this.streamingMessage || this.hasPendingToolActions();
   },
diff --git a/static/src/app/methods/ui/mode.ts b/static/src/app/methods/ui/mode.ts
index 179ec4c8..33a4f5a0 100644
--- a/static/src/app/methods/ui/mode.ts
+++ b/static/src/app/methods/ui/mode.ts
@@ -79,10 +79,6 @@ export const modeMethods = {
     if (!this.isConnected) {
       return;
     }
-    // 有运行中对话时不允许切换
-    if (this.composerBusy || this.anyWorkspaceHasRunningTask) {
-      return;
-    }
     this.inputCloseMenus();
     // 多智能体模式 → 传统模式；传统模式 → 多智能体模式
     const target = this.multiAgentMode ? '/new' : '/multiagent/new';
diff --git a/static/src/components/input/InputComposer.vue b/static/src/components/input/InputComposer.vue
index c899c101..a5b3d7c8 100644
--- a/static/src/components/input/InputComposer.vue
+++ b/static/src/components/input/InputComposer.vue
@@ -362,7 +362,6 @@
         :goal-mode-armed="goalModeArmed"
         :goal-running="goalRunning"
         :multi-agent-mode="multiAgentMode"
-        :has-running-task="hasRunningTask"
         @quick-upload="triggerQuickUpload"
         @open-file-manager="$emit('open-file-manager')"
         @pick-images="$emit('pick-images')"
@@ -636,7 +635,6 @@ const props = defineProps<{
   goalRunning?: boolean;
   goalProgress?: Record<string, any> | null;
   multiAgentMode?: boolean;
-  hasRunningTask?: boolean;
   /**
    * 主对话是否空闲（composerBusy 可能是 true，但只是因为后台子智能体在跑）。
    * 多智能体模式下，若主对话空闲，输入栏应处于“正常发送”状态，不是“停止”状态。
diff --git a/static/src/components/input/QuickMenu.vue b/static/src/components/input/QuickMenu.vue
index bda74573..c27a31bd 100644
--- a/static/src/components/input/QuickMenu.vue
+++ b/static/src/components/input/QuickMenu.vue
@@ -78,13 +78,11 @@
         class="menu-entry"
         :class="{ 'mode-entry-active': multiAgentMode }"
         @click.stop="$emit('toggle-agent-mode')"
-        :disabled="!isConnected || hasRunningTask"
-        :title="hasRunningTask ? '有运行中的对话，无法切换模式' : ''"
+        :disabled="!isConnected"
       >
         {{ multiAgentMode ? '返回传统模式' : '多智能体模式' }}
         <span class="entry-arrow">
-          <template v-if="hasRunningTask">有任务运行中</template>
-          <template v-else-if="multiAgentMode">当前模式</template>
+          <template v-if="multiAgentMode">当前模式</template>
         </span>
       </button>
       <button
@@ -226,7 +224,6 @@ const props = defineProps<{
   goalRunning?: boolean;
   goalProgress?: Record<string, any> | null;
   multiAgentMode?: boolean;
-  hasRunningTask?: boolean;
 }>();
 
 defineEmits<{