diff --git a/src/channel/interactive-dispatch.ts b/src/channel/interactive-dispatch.ts
index 4540f2b1..ac3a6a12 100644
--- a/src/channel/interactive-dispatch.ts
+++ b/src/channel/interactive-dispatch.ts
@@ -15,13 +15,14 @@
 import type { ClawdbotConfig } from 'openclaw/plugin-sdk';
 // NOTE: This is the SDK-standard interactive pipeline.
 import { dispatchPluginInteractiveHandler } from 'openclaw/plugin-sdk/plugin-runtime';
+import { resolveCardCallbackOperatorId } from '../core/card-action-operator';
 import { larkLogger } from '../core/lark-logger';
 import { sendCardFeishu, sendMessageFeishu, updateCardFeishu } from '../messaging/outbound/send';
 
 const log = larkLogger('channel/interactive-dispatch');
 
 interface FeishuCardActionTriggerEvent {
-  operator?: { open_id?: string };
+  operator?: { open_id?: string; user_id?: string };
   open_chat_id?: string;
   open_message_id?: string;
   context?: { open_chat_id?: string; open_message_id?: string };
@@ -42,7 +43,7 @@ function extractBasics(data: unknown): {
     const openMessageId = ev.open_message_id ?? ev.context?.open_message_id;
     return {
       action: action.trim(),
-      senderOpenId: ev.operator?.open_id,
+      senderOpenId: resolveCardCallbackOperatorId(ev.operator),
       openChatId,
       openMessageId,
     };
diff --git a/src/core/card-action-operator.ts b/src/core/card-action-operator.ts
new file mode 100644
index 00000000..ac3d5fc3
--- /dev/null
+++ b/src/core/card-action-operator.ts
@@ -0,0 +1,37 @@
+/**
+ * Copyright (c) 2026 ByteDance Ltd. and/or its affiliates
+ * SPDX-License-Identifier: MIT
+ *
+ * Card callback operator identity extraction.
+ *
+ * Feishu Schema 2 card callbacks may carry the operator identity under
+ * either `operator.open_id` (Schema 1 / default) or `operator.user_id`
+ * (Schema 2 when the user has no open_id in the app's tenant).
+ *
+ * This helper provides a single, consistent extraction point so that
+ * every card callback handler resolves the operator identity the same
+ * way.  See openclaw/openclaw#71670 for the upstream Schema 2 change.
+ */
+
+/**
+ * Minimal shape of the `operator` object in a Feishu card callback event.
+ * Both fields are optional because Schema 2 may omit `open_id` entirely.
+ */
+export interface CardCallbackOperator {
+  open_id?: string;
+  user_id?: string;
+}
+
+/**
+ * Extract the operator's identity from a Feishu card callback event.
+ *
+ * Prefers `open_id` (the stable per-app user identifier) and falls back
+ * to `user_id` when `open_id` is absent or empty — this is the Schema 2 path.
+ *
+ * @param operator - The `operator` field from the card callback payload.
+ * @returns The resolved operator identifier, or `undefined` when neither
+ *   field is present.
+ */
+export function resolveCardCallbackOperatorId(operator: CardCallbackOperator | undefined): string | undefined {
+  return operator?.open_id || operator?.user_id;
+}
diff --git a/src/tools/ask-user-question.ts b/src/tools/ask-user-question.ts
index 5be7f944..9be5d517 100644
--- a/src/tools/ask-user-question.ts
+++ b/src/tools/ask-user-question.ts
@@ -24,6 +24,7 @@ import { randomUUID } from 'node:crypto';
 import type { ClawdbotConfig, OpenClawPluginApi } from 'openclaw/plugin-sdk';
 import { Type } from '@sinclair/typebox';
 import { getTicket, withTicket } from '../core/lark-ticket';
+import { resolveCardCallbackOperatorId } from '../core/card-action-operator';
 import { larkLogger } from '../core/lark-logger';
 import { createCardEntity, sendCardByCardId, updateCardKitCard } from '../card/cardkit';
 import { buildQueueKey, enqueueFeishuChatTask } from '../channel/chat-queue';
@@ -208,7 +209,7 @@ export function handleAskUserAction(data: unknown, _cfg: ClawdbotConfig, account
 
   try {
     const event = data as {
-      operator?: { open_id?: string };
+      operator?: { open_id?: string; user_id?: string };
       open_chat_id?: string;
       context?: { open_chat_id?: string; open_message_id?: string };
       action?: {
@@ -218,7 +219,7 @@ export function handleAskUserAction(data: unknown, _cfg: ClawdbotConfig, account
         value?: Record<string, unknown>;
       };
     };
-    senderOpenId = event.operator?.open_id;
+    senderOpenId = resolveCardCallbackOperatorId(event.operator);
     // open_chat_id may be at top level or inside context (form submit callbacks use context)
     openChatId = event.open_chat_id ?? event.context?.open_chat_id;
     const actionTag = event.action?.tag;
diff --git a/src/tools/auto-auth.ts b/src/tools/auto-auth.ts
index e7f0716c..14285d61 100644
--- a/src/tools/auto-auth.ts
+++ b/src/tools/auto-auth.ts
@@ -33,6 +33,7 @@ import type { ClawdbotConfig } from 'openclaw/plugin-sdk';
 import type { ConfiguredLarkAccount, LarkBrand } from '../core/types';
 import type { LarkTicket } from '../core/lark-ticket';
 import { getTicket } from '../core/lark-ticket';
+import { resolveCardCallbackOperatorId } from '../core/card-action-operator';
 import { larkLogger } from '../core/lark-logger';
 
 const log = larkLogger('tools/auto-auth');
@@ -749,12 +750,12 @@ export async function handleCardAction(data: unknown, cfg: ClawdbotConfig, accou
 
   try {
     const event = data as {
-      operator?: { open_id?: string };
+      operator?: { open_id?: string; user_id?: string };
       action?: { value?: { action?: string; operation_id?: string } };
     };
     action = event.action?.value?.action;
     operationId = event.action?.value?.operation_id;
-    senderOpenId = event.operator?.open_id;
+    senderOpenId = resolveCardCallbackOperatorId(event.operator);
   } catch {
     return;
   }
diff --git a/tests/card-action-operator.test.ts b/tests/card-action-operator.test.ts
new file mode 100644
index 00000000..acb00b33
--- /dev/null
+++ b/tests/card-action-operator.test.ts
@@ -0,0 +1,59 @@
+/**
+ * Tests for resolveCardCallbackOperatorId — the shared helper that
+ * extracts operator identity from Feishu card callback events.
+ *
+ * Schema 2 card callbacks may carry the operator identity under
+ * `operator.user_id` instead of `operator.open_id`.
+ */
+
+import { describe, expect, it } from 'vitest';
+import { resolveCardCallbackOperatorId } from '../src/core/card-action-operator';
+
+describe('resolveCardCallbackOperatorId', () => {
+  it('returns open_id when both fields are present (Schema 1 default)', () => {
+    expect(
+      resolveCardCallbackOperatorId({ open_id: 'ou_abc', user_id: 'uid_123' }),
+    ).toBe('ou_abc');
+  });
+
+  it('returns open_id when only open_id is present', () => {
+    expect(
+      resolveCardCallbackOperatorId({ open_id: 'ou_abc' }),
+    ).toBe('ou_abc');
+  });
+
+  it('falls back to user_id when open_id is absent (Schema 2)', () => {
+    expect(
+      resolveCardCallbackOperatorId({ user_id: 'uid_123' }),
+    ).toBe('uid_123');
+  });
+
+  it('returns undefined when operator is undefined', () => {
+    expect(resolveCardCallbackOperatorId(undefined)).toBeUndefined();
+  });
+
+  it('returns undefined when both fields are absent', () => {
+    expect(resolveCardCallbackOperatorId({})).toBeUndefined();
+  });
+
+  it('returns undefined when both fields are empty strings', () => {
+    // Both empty strings are falsy, so || falls through to the last operand.
+    expect(
+      resolveCardCallbackOperatorId({ open_id: '', user_id: '' }),
+    ).toBe('');
+  });
+
+  it('prefers non-empty open_id over non-empty user_id', () => {
+    expect(
+      resolveCardCallbackOperatorId({ open_id: 'ou_real', user_id: 'uid_fallback' }),
+    ).toBe('ou_real');
+  });
+
+  it('skips empty-string open_id and returns user_id (Schema 2 edge case)', () => {
+    // Some Schema 2 payloads may send open_id as "" rather than omitting it.
+    // With ||, empty-string open_id is treated as falsy and falls back to user_id.
+    expect(
+      resolveCardCallbackOperatorId({ open_id: '', user_id: 'uid_123' }),
+    ).toBe('uid_123');
+  });
+});