diff --git a/apps/web/components/dev-task/DevTaskDetailDrawer.tsx b/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
index fba20da..67e1e83 100644
--- a/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
+++ b/apps/web/components/dev-task/DevTaskDetailDrawer.tsx
@@ -171,7 +171,7 @@ export function DevTaskDetailDrawer({ taskId, allTaskIds, onClose }: Props) {
               {task.completedAt && (
                 <div className="flex items-center gap-2">
                   <Calendar className="h-3 w-3 text-[var(--ink-muted)]" />
-                  <span className="text-[var(--ink-muted)]">完成</span>
+                  <span className="text-[var(--ink-muted)]">提测</span>
                   <span className="text-emerald-600 font-medium">{task.completedAt}</span>
                 </div>
               )}
diff --git a/apps/web/stores/useDevTaskStore.ts b/apps/web/stores/useDevTaskStore.ts
index 2c8d8db..0f8d6cc 100644
--- a/apps/web/stores/useDevTaskStore.ts
+++ b/apps/web/stores/useDevTaskStore.ts
@@ -79,7 +79,8 @@ export const useDevTaskStore = create<DevTaskState>((set, get) => ({
     }
     const today = new Date().toISOString().slice(0, 10);
     const startDate = (to === 'in_progress' && !task.startDate) ? today : task.startDate;
-    const completedAt = to === 'done' ? today : task.completedAt;
+    // 开发完成时间 = 提测时间（不是测试完成时间）
+    const completedAt = (to === 'submitted' && !task.completedAt) ? today : task.completedAt;
     get().updateTask(id, { status: to, startDate, completedAt });
     return { ok: true };
   },