diff --git a/apps/web/app/versions/[id]/page.tsx b/apps/web/app/versions/[id]/page.tsx
index 15eecdc..39c1c5f 100644
--- a/apps/web/app/versions/[id]/page.tsx
+++ b/apps/web/app/versions/[id]/page.tsx
@@ -8,7 +8,7 @@ import { useRequirementStore } from '@/stores/useRequirementStore';
 import { useOvertimeStore } from '@/stores/useOvertimeStore';
 import { getVersionDetail } from '@/lib/derive';
 import { STAGES } from '@/lib/stage';
-import { VersionStatus, VERSION_STATUS_LABEL, VERSION_STATUS_BG, getVersionDisplayStatus } from '@/lib/version-status';
+import { VersionStatus, VERSION_STATUS_LABEL, VERSION_STATUS_BG, getVersionDisplayStatus, calcVersionExecutionStatus, EXECUTION_STATUS_LABEL, EXECUTION_STATUS_COLOR } from '@/lib/version-status';
 import { CapsuleStages } from '@/components/version/CapsuleStages';
 import { MemberChips } from '@/components/version/MemberChips';
 import { HealthTrend, generateMockTrend } from '@/components/version/HealthTrend';
@@ -194,8 +194,17 @@ export default function VersionDetailPage() {
             const devTaskTodo = versionDevTasks.filter((t) => t.status === 'todo').length;
             const devTaskInProgress = versionDevTasks.filter((t) => t.status === 'in_progress').length;
             const devTaskBlocked = versionDevTasks.filter((t) => t.isBlocked).length;
-            const mockBugTotal = Math.max(Math.floor(versionReqs.length * 1.5), 2);
-            const mockBugOpen = Math.max(Math.floor(mockBugTotal * 0.3), 1);
+            const versionBugs = bugs.filter((b) => b.versionId === version.id);
+            const bugOpenCount = versionBugs.filter((b) => b.status === 'open' || b.status === 'fixing').length;
+
+            // 版本执行态推导
+            const versionTCs = testCases.filter((c) => c.versionId === version.id);
+            const executionStatus = calcVersionExecutionStatus({
+              manualStatus: version.status,
+              devTasks: versionDevTasks,
+              testCases: versionTCs,
+              bugs: versionBugs,
+            });
 
             return (
               <div className="space-y-4">
@@ -209,6 +218,9 @@ export default function VersionDetailPage() {
                   <span className={`text-[11px] px-2 py-0.5 rounded-full ${VERSION_STATUS_BG[version.status]}`}>
                     {getVersionDisplayStatus(version.status, version.currentStage)}
                   </span>
+                  <span className={`text-[11px] font-medium px-2 py-0.5 rounded-full ${EXECUTION_STATUS_COLOR[executionStatus]}`}>
+                    {EXECUTION_STATUS_LABEL[executionStatus]}
+                  </span>
                   <span className={`inline-flex items-center gap-1.5 text-[11px] font-semibold tabular-nums px-2 py-0.5 rounded-full ${healthLevel === 'critical' ? 'bg-red-50' : healthLevel === 'risk' ? 'bg-orange-50' : healthLevel === 'attention' ? 'bg-amber-50' : 'bg-emerald-50'} ${HEALTH_LEVEL_COLOR[healthLevel]}`}>
                     <span className={`h-1.5 w-1.5 rounded-full ${HEALTH_LEVEL_DOT[healthLevel]}`} />
                     {healthScore} {HEALTH_LEVEL_LABEL[healthLevel]}
@@ -230,7 +242,7 @@ export default function VersionDetailPage() {
                   <StatCard label="待开发" value={devTaskTodo} />
                   <StatCard label="开发中" value={devTaskInProgress} accent />
                   <StatCard label="阻塞中" value={devTaskBlocked} warn={devTaskBlocked > 0} />
-                  <StatCard label="参与人员" value={version.members?.length ?? 0} />
+                  <StatCard label="未关闭Bug" value={bugOpenCount} warn={bugOpenCount > 0} />
                 </div>
 
                 {/* 风险详情（胶囊条上方） */}
@@ -308,7 +320,7 @@ export default function VersionDetailPage() {
                   }
 
                   // 测试阶段进度由 TestCase 完成率驱动
-                  const versionTestCases = testCases.filter((c) => versionReqs.some((r) => r.id === c.requirementId));
+                  const versionTestCases = testCases.filter((c) => c.versionId === version.id);
                   if (versionTestCases.length > 0) {
                     const executed = versionTestCases.filter((c) => c.status === 'passed' || c.status === 'failed' || c.status === 'blocked').length;
                     const testPercent = Math.round((executed / versionTestCases.length) * 100);
diff --git a/apps/web/components/bug/BugCreateModal.tsx b/apps/web/components/bug/BugCreateModal.tsx
index 9ffdc86..a56f88d 100644
--- a/apps/web/components/bug/BugCreateModal.tsx
+++ b/apps/web/components/bug/BugCreateModal.tsx
@@ -48,7 +48,9 @@ export function BugCreateModal({ testCaseId, onClose }: Props) {
   const handleSubmit = () => {
     if (!canSubmit) return;
     createBug({
+      versionId: tc?.versionId || '',
       testCaseId,
+      requirementId: tc?.requirementId || undefined,
       title: title.trim(),
       description: description.trim(),
       severity,
diff --git a/apps/web/components/bug/BugTab.tsx b/apps/web/components/bug/BugTab.tsx
index 175571d..3f3ab13 100644
--- a/apps/web/components/bug/BugTab.tsx
+++ b/apps/web/components/bug/BugTab.tsx
@@ -26,15 +26,10 @@ export function BugTab({ versionId, requirementIds }: Props) {
   useEffect(() => { fetchBugs(); }, [fetchBugs]);
   useEffect(() => { fetchTestCases(); }, [fetchTestCases]);
 
-  // 该版本的所有 Bug（通过测试用例 → 需求 关联）
-  const versionCases = useMemo(
-    () => testCases.filter((c) => requirementIds.includes(c.requirementId)),
-    [testCases, requirementIds],
-  );
-  const versionCaseIds = useMemo(() => new Set(versionCases.map((c) => c.id)), [versionCases]);
+  // 该版本的所有 Bug（直接通过 versionId 查询）
   const versionBugs = useMemo(
-    () => bugs.filter((b) => versionCaseIds.has(b.testCaseId)),
-    [bugs, versionCaseIds],
+    () => bugs.filter((b) => b.versionId === versionId),
+    [bugs, versionId],
   );
 
   // 统计
diff --git a/apps/web/components/test-case/TestCaseCreateModal.tsx b/apps/web/components/test-case/TestCaseCreateModal.tsx
index 77a8f17..cb37616 100644
--- a/apps/web/components/test-case/TestCaseCreateModal.tsx
+++ b/apps/web/components/test-case/TestCaseCreateModal.tsx
@@ -9,11 +9,12 @@ import { useAuthStore } from '@/stores/useAuthStore';
 import type { Priority } from '@/lib/derive';
 
 interface Props {
+  versionId: string;
   requirementIds: string[];
   onClose: () => void;
 }
 
-export function TestCaseCreateModal({ requirementIds, onClose }: Props) {
+export function TestCaseCreateModal({ versionId, requirementIds, onClose }: Props) {
   const { createTestCase } = useTestCaseStore();
   const { requirements } = useRequirementStore();
   const { members } = useMemberStore();
@@ -30,12 +31,13 @@ export function TestCaseCreateModal({ requirementIds, onClose }: Props) {
   const [assigneeId, setAssigneeId] = useState(user?.name || '');
   const [description, setDescription] = useState('');
 
-  const canSubmit = title.trim() && requirementId;
+  const canSubmit = title.trim();
 
   const handleSubmit = () => {
     if (!canSubmit) return;
     createTestCase({
-      requirementId,
+      versionId,
+      requirementId: requirementId || undefined,
       title: title.trim(),
       description: description.trim() || undefined,
       priority,
@@ -58,8 +60,9 @@ export function TestCaseCreateModal({ requirementIds, onClose }: Props) {
             <input value={title} onChange={(e) => setTitle(e.target.value)} 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" placeholder="例如：正常排班" />
           </div>
           <div>
-            <label className="block text-[12px] text-[var(--ink-soft)] mb-1">所属需求 *</label>
+            <label className="block text-[12px] text-[var(--ink-soft)] mb-1">关联需求（可选）</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">
+              <option value="">不关联需求</option>
               {versionReqs.map((r) => <option key={r.id} value={r.id}>{r.code} {r.title}</option>)}
             </select>
           </div>
diff --git a/apps/web/components/test-case/TestCaseTab.tsx b/apps/web/components/test-case/TestCaseTab.tsx
index c2681a9..8d1dc44 100644
--- a/apps/web/components/test-case/TestCaseTab.tsx
+++ b/apps/web/components/test-case/TestCaseTab.tsx
@@ -29,7 +29,7 @@ export function TestCaseTab({ versionId, requirementIds }: Props) {
   useEffect(() => { fetchBugs(); }, [fetchBugs]);
 
   const versionCases = useMemo(
-    () => testCases.filter((c) => requirementIds.includes(c.requirementId)),
+    () => testCases.filter((c) => c.versionId === versionId),
     [testCases, requirementIds],
   );
 
@@ -52,13 +52,14 @@ export function TestCaseTab({ versionId, requirementIds }: Props) {
   const [selectedCaseId, setSelectedCaseId] = useState<string | null>(null);
   const [bugForCaseId, setBugForCaseId] = useState<string | null>(null);
 
-  // 按需求分组
+  // 按需求分组（无需求的归为"通用"）
   const groupedByReq = useMemo(() => {
     const map = new Map<string, typeof paged>();
     for (const c of paged) {
-      const list = map.get(c.requirementId) || [];
+      const key = c.requirementId || '__none__';
+      const list = map.get(key) || [];
       list.push(c);
-      map.set(c.requirementId, list);
+      map.set(key, list);
     }
     return map;
   }, [paged]);
@@ -133,7 +134,7 @@ export function TestCaseTab({ versionId, requirementIds }: Props) {
 
       {total > 20 && <Pagination total={total} page={page} pageSize={pageSize} onChange={setPage} onPageSizeChange={setPageSize} />}
 
-      {showCreate && <TestCaseCreateModal requirementIds={requirementIds} onClose={() => setShowCreate(false)} />}
+      {showCreate && <TestCaseCreateModal versionId={versionId} requirementIds={requirementIds} onClose={() => setShowCreate(false)} />}
       {selectedCaseId && <TestCaseDetailDrawer testCaseId={selectedCaseId} onClose={() => setSelectedCaseId(null)} onCreateBug={(id) => { setBugForCaseId(id); }} />}
       {bugForCaseId && <BugCreateModal testCaseId={bugForCaseId} onClose={() => setBugForCaseId(null)} />}
     </div>
diff --git a/apps/web/lib/bug.ts b/apps/web/lib/bug.ts
index f40dfee..37372dc 100644
--- a/apps/web/lib/bug.ts
+++ b/apps/web/lib/bug.ts
@@ -6,7 +6,9 @@ export type BugSeverity = 'critical' | 'major' | 'minor' | 'trivial';
 export interface Bug {
   id: string;
   bugNo: string;
+  versionId: string;
   testCaseId: string;
+  requirementId?: string;
   title: string;
   description: string;
   severity: BugSeverity;
diff --git a/apps/web/lib/test-case.ts b/apps/web/lib/test-case.ts
index cfbad0a..34aae9d 100644
--- a/apps/web/lib/test-case.ts
+++ b/apps/web/lib/test-case.ts
@@ -5,7 +5,8 @@ export type TestCaseStatus = 'pending' | 'running' | 'passed' | 'failed' | 'bloc
 export interface TestCase {
   id: string;
   caseNo: string;
-  requirementId: string;
+  versionId: string;
+  requirementId?: string;
   title: string;
   description?: string;
   priority: Priority;
diff --git a/apps/web/lib/version-status.ts b/apps/web/lib/version-status.ts
index f582d6a..3c83897 100644
--- a/apps/web/lib/version-status.ts
+++ b/apps/web/lib/version-status.ts
@@ -40,3 +40,66 @@ export function getVersionDisplayStatus(status: VersionStatus, currentStage?: st
   }
   return VERSION_STATUS_LABEL[status];
 }
+
+// === 版本执行态推导 ===
+
+export type VersionExecutionStatus = 'planning' | 'developing' | 'submitted' | 'testing' | 'ready' | 'released';
+
+export const EXECUTION_STATUS_LABEL: Record<VersionExecutionStatus, string> = {
+  planning: '规划中',
+  developing: '开发中',
+  submitted: '已提测',
+  testing: '测试中',
+  ready: '可发布',
+  released: '已发布',
+};
+
+export const EXECUTION_STATUS_COLOR: Record<VersionExecutionStatus, string> = {
+  planning: 'bg-zinc-100 text-zinc-600',
+  developing: 'bg-blue-50 text-blue-600',
+  submitted: 'bg-orange-50 text-orange-600',
+  testing: 'bg-purple-50 text-purple-600',
+  ready: 'bg-emerald-50 text-emerald-600',
+  released: 'bg-zinc-100 text-zinc-500',
+};
+
+export interface ExecutionInput {
+  manualStatus?: VersionStatus;
+  devTasks: { status: string }[];
+  testCases: { status: string }[];
+  bugs: { status: string }[];
+}
+
+export function calcVersionExecutionStatus(input: ExecutionInput): VersionExecutionStatus {
+  const { manualStatus, devTasks, testCases, bugs } = input;
+
+  if (manualStatus === 'released') return 'released';
+  if (manualStatus === 'planned' || manualStatus === 'paused' || manualStatus === 'closed') return 'planning';
+
+  // fallback: 没有 DevTask 则停留 planning
+  if (devTasks.length === 0) return 'planning';
+
+  const allDevDone = devTasks.every((t) => t.status === 'done');
+  const allDevSubmitted = devTasks.every((t) => t.status === 'submitted' || t.status === 'done');
+
+  // 判断是否可发布
+  if (testCases.length > 0) {
+    const allPassed = testCases.every((c) => c.status === 'passed');
+    const allBugsClosed = bugs.every((b) => b.status === 'closed' || b.status === 'rejected');
+    if (allPassed && allBugsClosed) return 'ready';
+  }
+
+  // 测试中（有用例在执行）
+  if (allDevSubmitted && testCases.length > 0) {
+    const hasRunning = testCases.some((c) => c.status === 'running' || c.status === 'passed' || c.status === 'failed' || c.status === 'blocked');
+    if (hasRunning) return 'testing';
+  }
+
+  // 已提测
+  if (allDevSubmitted) return 'submitted';
+
+  // 开发完成但未全部提测
+  if (allDevDone) return 'submitted';
+
+  return 'developing';
+}
diff --git a/apps/web/stores/useBugStore.ts b/apps/web/stores/useBugStore.ts
index 6bacf80..0c56b10 100644
--- a/apps/web/stores/useBugStore.ts
+++ b/apps/web/stores/useBugStore.ts
@@ -25,6 +25,7 @@ interface BugState {
   deleteBug: (id: string) => void;
   changeStatus: (id: string, to: BugStatus, extra?: { resolution?: string }) => { ok: boolean; message?: string };
   getByTestCase: (caseId: string) => Bug[];
+  getByVersion: (versionId: string) => Bug[];
   getByAssignee: (assigneeId: string) => Bug[];
 }
 
@@ -86,6 +87,10 @@ export const useBugStore = create<BugState>((set, get) => ({
     return get().bugs.filter((b) => b.testCaseId === caseId);
   },
 
+  getByVersion: (versionId) => {
+    return get().bugs.filter((b) => b.versionId === versionId);
+  },
+
   getByAssignee: (assigneeId) => {
     return get().bugs.filter((b) => b.assigneeId === assigneeId);
   },
diff --git a/apps/web/stores/useTestCaseStore.ts b/apps/web/stores/useTestCaseStore.ts
index ad4f5c3..35fbf7c 100644
--- a/apps/web/stores/useTestCaseStore.ts
+++ b/apps/web/stores/useTestCaseStore.ts
@@ -25,6 +25,7 @@ interface TestCaseState {
   deleteTestCase: (id: string) => void;
   changeStatus: (id: string, to: TestCaseStatus, extra?: { failReason?: string; blockReason?: string }) => { ok: boolean; message?: string };
   getByRequirement: (reqId: string) => TestCase[];
+  getByVersion: (versionId: string) => TestCase[];
   getByAssignee: (assigneeId: string) => TestCase[];
 }
 
@@ -89,6 +90,10 @@ export const useTestCaseStore = create<TestCaseState>((set, get) => ({
     return get().testCases.filter((c) => c.requirementId === reqId);
   },
 
+  getByVersion: (versionId) => {
+    return get().testCases.filter((c) => c.versionId === versionId);
+  },
+
   getByAssignee: (assigneeId) => {
     return get().testCases.filter((c) => c.assigneeId === assigneeId);
   },