diff --git a/dashboard/backend/src/routes/ota.ts b/dashboard/backend/src/routes/ota.ts
index 201cbaa..b12c3ae 100644
--- a/dashboard/backend/src/routes/ota.ts
+++ b/dashboard/backend/src/routes/ota.ts
@@ -215,7 +215,7 @@ router.post('/api/ota/', async (req: Request, res: Response) => {
     const data = parsed.data;
     logger.info(`Creating OTA: verCode=${data.verCode}, verName=${data.verName}, model=${data.model}`);
 
-    // 检查版本号是否已存在
+    // 检查版本号+版本名称是否已存在
     const [existing] = await db
       .select()
       .from(otas)
@@ -223,11 +223,12 @@ router.post('/api/ota/', async (req: Request, res: Response) => {
         eq(otas.verCode, data.verCode),
         eq(otas.model, data.model!),
         eq(otas.beta, data.beta ?? 0),
+        eq(otas.verName, data.verName),
       ))
       .limit(1);
     if (existing) {
-      logger.warn(`OTA version already exists: verCode=${data.verCode}, model=${data.model}, beta=${data.beta ?? 0}`);
-      res.json(ApiResponse.error('该版本已存在（相同版本+灰度状态）'));
+      logger.warn(`OTA version already exists: verCode=${data.verCode}, verName=${data.verName}, model=${data.model}, beta=${data.beta ?? 0}`);
+      res.json(ApiResponse.error('该版本已存在（相同版本+名称+灰度状态）'));
       return;
     }
 
@@ -279,20 +280,21 @@ router.put('/api/ota/:ota_id', async (req: Request, res: Response) => {
       return;
     }
 
-    // 如果更新版本号或灰度状态，检查是否冲突
+    // 如果更新版本号、名称或灰度状态，检查是否冲突
     const newVerCode = data.verCode !== undefined && data.verCode !== null ? data.verCode : dbOta.verCode;
     const newModel = data.model !== undefined && data.model !== null ? data.model : dbOta.model;
     const newBeta = data.beta !== undefined && data.beta !== null ? data.beta : dbOta.beta;
+    const newVerName = data.verName !== undefined && data.verName !== null ? data.verName : dbOta.verName;
 
-    if (newVerCode !== dbOta.verCode || newModel !== dbOta.model || newBeta !== dbOta.beta) {
+    if (newVerCode !== dbOta.verCode || newModel !== dbOta.model || newBeta !== dbOta.beta || newVerName !== dbOta.verName) {
       const [existing] = await db
         .select()
         .from(otas)
-        .where(and(eq(otas.verCode, newVerCode), eq(otas.model, newModel!), eq(otas.beta, newBeta)))
+        .where(and(eq(otas.verCode, newVerCode), eq(otas.model, newModel!), eq(otas.beta, newBeta), eq(otas.verName, newVerName)))
         .limit(1);
       if (existing) {
-        logger.warn(`OTA version already exists: verCode=${newVerCode}, model=${newModel}, beta=${newBeta}`);
-        res.json(ApiResponse.error('该版本已存在（相同版本+灰度状态）'));
+        logger.warn(`OTA version already exists: verCode=${newVerCode}, verName=${newVerName}, model=${newModel}, beta=${newBeta}`);
+        res.json(ApiResponse.error('该版本已存在（相同版本+名称+灰度状态）'));
         return;
       }
     }
diff --git a/dashboard/frontend/src/typings/components.d.ts b/dashboard/frontend/src/typings/components.d.ts
index fff6479..8e2e459 100644
--- a/dashboard/frontend/src/typings/components.d.ts
+++ b/dashboard/frontend/src/typings/components.d.ts
@@ -41,8 +41,6 @@ declare module 'vue' {
     NButton: typeof import('naive-ui')['NButton']
     NCard: typeof import('naive-ui')['NCard']
     NCheckbox: typeof import('naive-ui')['NCheckbox']
-    NCollapse: typeof import('naive-ui')['NCollapse']
-    NCollapseItem: typeof import('naive-ui')['NCollapseItem']
     NColorPicker: typeof import('naive-ui')['NColorPicker']
     NDataTable: typeof import('naive-ui')['NDataTable']
     NDatePicker: typeof import('naive-ui')['NDatePicker']
@@ -134,8 +132,6 @@ declare global {
   const NButton: typeof import('naive-ui')['NButton']
   const NCard: typeof import('naive-ui')['NCard']
   const NCheckbox: typeof import('naive-ui')['NCheckbox']
-  const NCollapse: typeof import('naive-ui')['NCollapse']
-  const NCollapseItem: typeof import('naive-ui')['NCollapseItem']
   const NColorPicker: typeof import('naive-ui')['NColorPicker']
   const NDataTable: typeof import('naive-ui')['NDataTable']
   const NDatePicker: typeof import('naive-ui')['NDatePicker']
diff --git a/dashboard/frontend/src/views/upgrade/ota/index.vue b/dashboard/frontend/src/views/upgrade/ota/index.vue
index a705e28..2137f25 100644
--- a/dashboard/frontend/src/views/upgrade/ota/index.vue
+++ b/dashboard/frontend/src/views/upgrade/ota/index.vue
@@ -47,6 +47,9 @@ interface OtaRow {
   target?: number;
   status?: number;
   create_at?: string;
+  children?: OtaRow[];
+  __groupChild?: boolean;
+  __groupCount?: number;
   [key: string]: unknown;
 }
 
@@ -66,6 +69,8 @@ const packageFileList = ref<UploadFileInfo[]>([]);
 const packageUploading = ref(false);
 const skipPackageClearOnModelWatch = ref(false);
 const tableData = ref<OtaRow[]>([]);
+// 受控的树形展开状态：同组折叠行首列箭头展开，刷新数据后重置为收起
+const expandedRowKeys = ref<Array<string | number>>([]);
 
 const searchForm = reactive<{
   verName: string;
@@ -193,15 +198,20 @@ function moreOptions(): DropdownOption[] {
 }
 
 const columns = computed<DataTableColumns<OtaRow>>(() => [
-  { title: 'ID', key: 'id', width: 70 },
+  // 树形子行首列自带库的缩进补偿（indent 16px + placeholder 24px），
+  // 列宽需容纳该补偿 + ID 文本，否则内容换行撑高行高
+  { title: 'ID', key: 'id', width: 100 },
   { title: '版本号', key: 'verCode', width: 90 },
   {
     title: '版本名',
     key: 'verName',
-    width: 200,
+    width: 280,
     render(row) {
       return h('div', { class: 'flex-y-center gap-8px' }, [
         h('span', { class: 'truncate', title: row.verName }, row.verName || '-'),
+        row.__groupCount && row.__groupCount > 1
+          ? h(NTag, { type: 'info', size: 'small', bordered: false }, { default: () => `${row.__groupCount ?? 1} 条版本` })
+          : null,
         getLatestTag(row)
           ? h(
               NTag,
@@ -287,6 +297,10 @@ const columns = computed<DataTableColumns<OtaRow>>(() => [
   }
 ]);
 
+function rowClassName(row: OtaRow) {
+  return row.__groupChild ? 'ota-group-child-row' : '';
+}
+
 function buildPayload() {
   const model = (formData.model == null || formData.model === '' ? '' : String(formData.model)).trim();
   return {
@@ -360,6 +374,29 @@ function handlePackageRemove() {
   clearPackageFields();
 }
 
+// 同「型号+版本号+灰度」的多条记录折叠为一行：后端按 id 倒序返回，
+// 组内首次出现即 id 最大的一条，作为主行；其余记录挂到 children，
+// 点击主行首列箭头展开查看。分页在服务端按行切分，同组记录跨页时
+// 各页独立分组（数据不丢失，仅不折叠）。
+const groupedTableData = computed<OtaRow[]>(() => {
+  const mainByKey = new Map<string, OtaRow>();
+  const result: OtaRow[] = [];
+  for (const row of tableData.value) {
+    const key = `${row.model || ''}__${row.verCode}__${row.beta ?? 0}`;
+    const main = mainByKey.get(key);
+    if (!main) {
+      const copy: OtaRow = { ...row, __groupCount: 1 };
+      mainByKey.set(key, copy);
+      result.push(copy);
+    } else {
+      main.__groupCount = (main.__groupCount ?? 1) + 1;
+      if (!main.children) main.children = [];
+      main.children.push({ ...row, __groupChild: true });
+    }
+  }
+  return result;
+});
+
 async function loadData() {
   loading.value = true;
   // 同步刷新全局最新版本（latest 标签依据，增删改后保持一致）
@@ -378,6 +415,7 @@ async function loadData() {
   if (!error && data) {
     tableData.value = (data.items as OtaRow[]) || [];
     pagination.itemCount = data.total || 0;
+    expandedRowKeys.value = [];
   } else if (!error) {
     tableData.value = [];
     pagination.itemCount = 0;
@@ -768,7 +806,11 @@ onMounted(() => {
       <NDataTable
         :loading="loading"
         :columns="columns"
-        :data="tableData"
+        :data="groupedTableData"
+        :row-key="(row: OtaRow) => row.id"
+        :row-class-name="rowClassName"
+        :expanded-row-keys="expandedRowKeys"
+        @update:expanded-row-keys="keys => (expandedRowKeys = keys)"
         :bordered="false"
         :single-line="false"
         size="small"
@@ -973,4 +1015,9 @@ onMounted(() => {
 :deep(.ota-copy-icon:hover) {
   color: var(--n-primary-color);
 }
+
+/* 折叠组内的子行（同版本号下较早的记录）：弱化背景以区分主行 */
+:deep(.ota-group-child-row > td) {
+  background-color: rgba(128, 128, 128, 0.05);
+}
 </style>