diff --git a/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts b/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
index 834fefe2..23123d21 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
@@ -516,6 +516,10 @@ async function bindAffiliateDashClaimForTask(task: TaskRow, gameAccount: string)
     qrUrl: bindResult.qrUrl,
     gameAccount,
     expectedGameAccount: gameAccount,
+    // 重新绑定：清空旧绑定状态，等待用户用新账号扫码完成新绑定
+    bound: false,
+    boundAccount: '',
+    bindMismatch: false,
   }
 
   const updatedTask = await updateTask(task.id, {
diff --git a/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx b/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
index bae95c94..061e26f9 100644
--- a/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
+++ b/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
@@ -35,9 +35,15 @@ export function AffiliateDashClaimPanel({
     <Card className="claim-content-card">
       <div className="claim-feifei-main">
         <Typography.Title level={2}>
-          {bound ? '第 3 步：确认并提交发货' : '第 2 步：绑定领取账号'}
+          {bound && !bindMismatch ? '第 3 步：确认并提交发货' : '第 2 步：绑定领取账号'}
         </Typography.Title>
-        <p>{bound ? '账号绑定成功，确认无误后提交发货' : '打开绑定链接完成绑定，系统将自动确认'}</p>
+        <p>
+          {bound && !bindMismatch
+            ? '账号绑定成功，确认无误后提交发货'
+            : bindMismatch
+              ? '绑定账号与填写 UID 不一致，请核对 UID 后用正确账号重新绑定'
+              : '打开绑定链接完成绑定，系统将自动确认'}
+        </p>
       </div>
 
       <UidEditRow