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 295c2231..834fefe2 100644
--- a/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
+++ b/apps/backend/src/services/claim/kuaishou-cloud-claim-service.ts
@@ -415,6 +415,31 @@ export async function submitAffiliateDashClaim(
 
   const now = nowIso()
   const isMock = Boolean(flow.mock?.enabled)
+
+  // 强制校验：绑定返回的游戏账号与第一步填写 UID 不一致时禁止提交（防止 uid 输错），
+  // 不依赖平台 mismatch 字段。拉取绑定结果失败时不阻塞（平台提交时仍会校验）。
+  if (!isMock && flow.bindUuid) {
+    let mismatch = false
+    try {
+      const bindResult = await getAffiliateDashBindResult({
+        orderNo: flow.orderNo,
+        bindUuid,
+      })
+      const boundAccount = bindResult.gameAccount
+      mismatch =
+        Boolean(bindResult.mismatch) ||
+        Boolean(boundAccount && normalizeUid(boundAccount) !== normalizeUid(gameAccount))
+    } catch {
+      // 拉取失败：保持放行
+    }
+    if (mismatch) {
+      throw createHttpError('绑定账号与填写 UID 不一致，请确认后重新绑定', {
+        statusCode: 409,
+        errorCode: 'affiliate_dash_bind_mismatch',
+      })
+    }
+  }
+
   const result = isMock
     ? {
         status: 'delivered',
@@ -490,6 +515,7 @@ async function bindAffiliateDashClaimForTask(task: TaskRow, gameAccount: string)
     bindUrl: bindResult.bindUrl,
     qrUrl: bindResult.qrUrl,
     gameAccount,
+    expectedGameAccount: gameAccount,
   }
 
   const updatedTask = await updateTask(task.id, {
@@ -534,12 +560,20 @@ async function refreshAffiliateDashBindState(task: TaskRow): Promise<TaskRow | n
       orderNo: flow.orderNo,
       bindUuid: flow.bindUuid,
     })
+    const boundAccount = result.gameAccount || flow.boundAccount
+    // 本地强制校验：绑定返回的游戏账号与第一步填写的 UID 不一致时置 mismatch
+    // （不依赖平台 mismatch 字段，防止平台未标记但实际账号不一致的情况）。
+    const localMismatch = Boolean(
+      boundAccount &&
+        flow.expectedGameAccount &&
+        normalizeUid(boundAccount) !== normalizeUid(flow.expectedGameAccount),
+    )
     const nextFlow = {
       ...flow,
       bound: result.bound,
-      boundAccount: result.gameAccount || flow.boundAccount,
+      boundAccount,
       gameChannel: result.gameChannel || flow.gameChannel,
-      bindMismatch: result.mismatch,
+      bindMismatch: Boolean(result.mismatch) || localMismatch,
     }
     const now = nowIso()
 
@@ -558,6 +592,12 @@ async function refreshAffiliateDashBindState(task: TaskRow): Promise<TaskRow | n
   }
 }
 
+function normalizeUid(value: unknown) {
+  return String(value || '')
+    .trim()
+    .replace(/\s+/g, '')
+}
+
 export async function rebindKuaishouCloudClaimRole(token: unknown) {
   const context = await getClaimContext(token)
   assertLewanClaimTask(context.task)
diff --git a/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx b/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
index a9fb5dbf..bae95c94 100644
--- a/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
+++ b/apps/frontend/src/pages/claim/ClaimAffiliateDashSteps.tsx
@@ -123,6 +123,14 @@ export function AffiliateDashClaimPanel({
             V区用V扫
           </span>
         </div>
+      ) : bindMismatch ? (
+        <Alert
+          type="warning"
+          showIcon
+          message="绑定账号与填写 UID 不一致，暂不能提交发货"
+          description="请核对上方填写的 UID，确认无误后重新绑定；绑定成功且账号一致后，即可提交发货。"
+          style={{ marginBottom: 16 }}
+        />
       ) : (
         <Button
           type="primary"