diff --git a/src/card/reply-dispatcher.ts b/src/card/reply-dispatcher.ts
index a2635c61..01c8fbab 100644
--- a/src/card/reply-dispatcher.ts
+++ b/src/card/reply-dispatcher.ts
@@ -215,12 +215,13 @@ export function createFeishuReplyDispatcher(params: CreateFeishuReplyDispatcherP
 
       // 提取文本和媒体 URL
       const text = getVisiblePayloadText(payload);
+      const reasoningText = payload.isReasoning === true ? (payload.text ?? '') : '';
       const payloadMediaUrls = payload.mediaUrls?.length
         ? payload.mediaUrls
         : payload.mediaUrl
           ? [payload.mediaUrl]
           : [];
-      if (!text.trim() && payloadMediaUrls.length === 0) {
+      if (!text.trim() && !reasoningText.trim() && payloadMediaUrls.length === 0) {
         log.debug('deliver: empty text and no media, skipping');
         return;
       }
@@ -232,12 +233,17 @@ export function createFeishuReplyDispatcher(params: CreateFeishuReplyDispatcherP
           return;
         }
 
-        if (text.trim()) {
+        const controllerText = reasoningText.trim() ? reasoningText : text;
+        if (controllerText.trim()) {
           await controller.ensureCardCreated();
           if (controller.isTerminated) return;
 
           if (controller.cardMessageId) {
-            await controller.onDeliver({ ...payload, text });
+            if (payload.isReasoning === true) {
+              await controller.onReasoningStream({ ...payload, text: controllerText });
+              return;
+            }
+            await controller.onDeliver({ ...payload, text: controllerText });
             return;
           }
           // Card creation failed — fall through to static delivery
diff --git a/tests/reply-dispatcher-tool-use.test.ts b/tests/reply-dispatcher-tool-use.test.ts
index 5c3a8f1a..a7a6a1d9 100644
--- a/tests/reply-dispatcher-tool-use.test.ts
+++ b/tests/reply-dispatcher-tool-use.test.ts
@@ -184,6 +184,64 @@ describe('reply-dispatcher tool_use mode', () => {
     expect(controllerSpies.onDeliver).not.toHaveBeenCalled();
   });
 
+  it('routes reasoning payload text through the streaming card reasoning lane', async () => {
+    const result = createFeishuReplyDispatcher({
+      cfg: {} as never,
+      agentId: 'main',
+      sessionKey: 'agent:main:feishu:dm:user-1',
+      chatId: 'chat-1',
+      accountId: 'default',
+      chatType: 'p2p',
+      replyInThread: false,
+      skipTyping: true,
+      toolUseDisplay: {
+        mode: 'on',
+        showToolUse: true,
+        showToolResultDetails: false,
+        showFullPaths: false,
+      },
+    });
+
+    result.dispatcher.sendFinalReply({ text: 'Reasoning:\n_checking context_', isReasoning: true });
+    await Promise.resolve();
+
+    expect(controllerSpies.ensureCardCreated).toHaveBeenCalled();
+    expect(controllerSpies.onReasoningStream).toHaveBeenCalledWith({
+      text: 'Reasoning:\n_checking context_',
+      isReasoning: true,
+    });
+    expect(controllerSpies.onDeliver).not.toHaveBeenCalled();
+  });
+
+  it('routes bare reasoning payload text through the streaming card reasoning lane', async () => {
+    const result = createFeishuReplyDispatcher({
+      cfg: {} as never,
+      agentId: 'main',
+      sessionKey: 'agent:main:feishu:dm:user-1',
+      chatId: 'chat-1',
+      accountId: 'default',
+      chatType: 'p2p',
+      replyInThread: false,
+      skipTyping: true,
+      toolUseDisplay: {
+        mode: 'on',
+        showToolUse: true,
+        showToolResultDetails: false,
+        showFullPaths: false,
+      },
+    });
+
+    result.dispatcher.sendFinalReply({ text: 'checking context', isReasoning: true });
+    await Promise.resolve();
+
+    expect(controllerSpies.ensureCardCreated).toHaveBeenCalled();
+    expect(controllerSpies.onReasoningStream).toHaveBeenCalledWith({
+      text: 'checking context',
+      isReasoning: true,
+    });
+    expect(controllerSpies.onDeliver).not.toHaveBeenCalled();
+  });
+
   it('preserves SDK tool-result emission in static mode', () => {
     replyModeState.mode = 'static';