diff --git a/apps/web/components/dev-task/DevTaskCreateModal.tsx b/apps/web/components/dev-task/DevTaskCreateModal.tsx
index b567585..23c16f0 100644
--- a/apps/web/components/dev-task/DevTaskCreateModal.tsx
+++ b/apps/web/components/dev-task/DevTaskCreateModal.tsx
@@ -37,7 +37,8 @@ export function DevTaskCreateModal({ versionId, requirementIds, versionDeadline,
   const [requirementId, setRequirementId] = useState(versionReqs[0]?.id || '');
   const [categoryId, setCategoryId] = useState(categories[0]?.id || '');
   const [assigneeId, setAssigneeId] = useState(user?.name || '');
-  const [priority, setPriority] = useState<Priority>('P2');
+  const [priority, setPriority] = useState<Priority>(versionReqs[0]?.priority || 'P2');
+  const [priorityManuallySet, setPriorityManuallySet] = useState(false);
   const [estimateHours, setEstimateHours] = useState<number>(8);
   const [dueDate, setDueDate] = useState('');
   const [predecessorIds, setPredecessorIds] = useState<string[]>([]);
@@ -45,7 +46,7 @@ export function DevTaskCreateModal({ versionId, requirementIds, versionDeadline,
   const [overdueReason, setOverdueReason] = useState('');
 
   const selectedReq = versionReqs.find((r) => r.id === requirementId);
-  const effectivePriority = selectedReq?.priority || priority;
+  const effectivePriority = priorityManuallySet ? priority : (selectedReq?.priority || priority);
   const isOverdue = !!(dueDate && versionDeadline && dueDate > versionDeadline);
   const canSubmit = title.trim() && requirementId && categoryId && assigneeId && estimateHours > 0 && (!isOverdue || overdueReason.trim());
 
@@ -89,7 +90,7 @@ export function DevTaskCreateModal({ versionId, requirementIds, versionDeadline,
           </div>
           <div>
             <label className="block text-[12px] text-[var(--ink-soft)] mb-1">所属需求 *</label>
-            <select value={requirementId} onChange={(e) => { setRequirementId(e.target.value); const r = versionReqs.find((x) => x.id === e.target.value); if (r) setPriority(r.priority); }} className="h-9 w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 text-[13px] focus:border-[var(--accent)] focus:outline-none">
+            <select value={requirementId} onChange={(e) => { setRequirementId(e.target.value); const r = versionReqs.find((x) => x.id === e.target.value); if (r && !priorityManuallySet) setPriority(r.priority); }} className="h-9 w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 text-[13px] focus:border-[var(--accent)] focus:outline-none">
               {versionReqs.map((r) => <option key={r.id} value={r.id}>{r.code} {r.title}</option>)}
             </select>
           </div>
@@ -111,7 +112,7 @@ export function DevTaskCreateModal({ versionId, requirementIds, versionDeadline,
           <div className="grid grid-cols-3 gap-3">
             <div>
               <label className="block text-[12px] text-[var(--ink-soft)] mb-1">优先级</label>
-              <select value={effectivePriority} onChange={(e) => setPriority(e.target.value as Priority)} className="h-9 w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 text-[13px] focus:border-[var(--accent)] focus:outline-none">
+              <select value={effectivePriority} onChange={(e) => { setPriority(e.target.value as Priority); setPriorityManuallySet(true); }} className="h-9 w-full rounded-lg border border-[var(--line)] bg-[var(--bg)] px-3 text-[13px] focus:border-[var(--accent)] focus:outline-none">
                 {(['P0','P1','P2','P3'] as Priority[]).map((p) => <option key={p} value={p}>{p}</option>)}
               </select>
             </div>