diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/index.ts b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/index.ts
index e70ed86..cec7530 100644
--- a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/index.ts
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/index.ts
@@ -1,8 +1,10 @@
 /**
  * iAOP API 客户端出口（Epic #163 / issue #166 [A3]）
  *
- * - infer.ts     —— LLM 网关（/v1/*：health / models / chat/completions）
- * - templates.ts —— 驾驶舱布局与告警面板模板 JSON（public/iaop/plans）
+ * - infer.ts      —— LLM 网关（/v1/*：health / models / chat/completions）
+ * - templates.ts  —— 驾驶舱布局与告警面板模板 JSON（public/iaop/plans）
+ * - registry.ts   —— 模型注册表 HTTP API（E1 #182 / E2 #183：list/register/promote/rollback）
  */
 export * from './infer';
+export * from './registry';
 export * from './templates';
diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts
new file mode 100644
index 0000000..6a8b45b
--- /dev/null
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts
@@ -0,0 +1,147 @@
+/**
+ * iAOP 模型注册表 API 客户端（issue #183 [E2] / PRD 5.3 ③）
+ *
+ * 对接 E1 后端 ``core/model-framework/registry_api.py``（nginx 反代
+ * ``/api/v1/registry/`` → :8090），四接口：
+ *
+ *   GET  /api/v1/registry/models                 列表（可按 stage 过滤）
+ *   POST /api/v1/registry/models                 注册新版本（服务端校验）
+ *   POST /api/v1/registry/models/{name}/{ver}/promote   dev→staging→prod
+ *   POST /api/v1/registry/models/{name}/rollback?version=&stage=  回滚
+ *
+ * 鉴权：读接口接 FBA JWT，写接口要求权限码 iaop:admin/iaop:studio。
+ * 复用 FBA requestClient 的 token 注入（``useAccessStore().accessToken``），
+ * 但注册表走 iAOP 后端独立路径 ``/api/v1/registry/``（非 /fba），故用原生
+ * fetch 封装，与 infer.ts 同款风格（超时 / 错误信息 / 结果结构统一）。
+ *
+ * 调用方应在 catch 中降级到 localStorage 演示模式（见 views/iaop/admin/models.vue）。
+ */
+import { useAccessStore } from '@vben/stores';
+
+const BASE_URL = '/api/v1/registry';
+const TIMEOUT_MS = 10000;
+
+/** 注册表模型视图（对齐后端 registry_api._tpl_view） */
+export interface RegistryModel {
+  name: string;
+  version: string;
+  backbone: string;
+  stage: 'dev' | 'staging' | 'prod';
+  hyperparams?: Record<string, unknown>;
+  feature_columns?: string[];
+  target_column?: string;
+  metrics?: Record<string, number>;
+  registered_at: number;
+  description?: string;
+  extra?: Record<string, unknown>;
+  /** 种子/迁移字段（extra.author 提到顶层，便于前端展示） */
+  author?: string;
+}
+
+/** 列表响应 */
+interface ListResponse {
+  models: RegistryModel[];
+  total: number;
+}
+
+/** 是否处于「服务不可达」错误（调用方据此降级 localStorage） */
+export function isRegistryUnavailable(err: unknown): boolean {
+  if (!(err instanceof Error)) return false;
+  return /Failed to fetch|NetworkError|超时|HTTP 5\d\d|HTTP 0/i.test(err.message);
+}
+
+/** 注册新版本的请求体 */
+export interface RegisterModelParams {
+  name: string;
+  version: string;
+  backbone?: string;
+  stage?: 'dev' | 'staging' | 'prod';
+  hyperparams?: Record<string, unknown>;
+  feature_columns?: string[];
+  target_column?: string;
+  metrics?: Record<string, number>;
+  description?: string;
+  extra?: Record<string, unknown>;
+}
+
+/** 取当前 FBA access token（与 requestClient 同源注入） */
+function authHeader(): Record<string, string> {
+  try {
+    const token = useAccessStore().accessToken;
+    return token ? { Authorization: `Bearer ${token}` } : {};
+  } catch {
+    // store 未就绪（如独立运行 / 单测）时降级无鉴权
+    return {};
+  }
+}
+
+/** 带超时的 fetch + FBA token 注入 */
+async function fetchJson<T>(path: string, init?: RequestInit): Promise<T> {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), TIMEOUT_MS);
+  try {
+    const resp = await fetch(`${BASE_URL}${path}`, {
+      ...init,
+      signal: controller.signal,
+      headers: {
+        'Content-Type': 'application/json',
+        ...authHeader(),
+        ...(init?.headers || {}),
+      },
+    });
+    if (!resp.ok) {
+      // 401/403/404 等业务错误：尝试读后端 {error} 字段，否则给 HTTP 码
+      let detail = `HTTP ${resp.status}`;
+      try {
+        const body = await resp.json();
+        if (body?.error) detail = body.error;
+      } catch { /* 非 JSON 错误体忽略 */ }
+      throw new Error(detail);
+    }
+    const text = await resp.text();
+    return (text ? JSON.parse(text) : {}) as T;
+  } catch (err) {
+    if (err instanceof DOMException && err.name === 'AbortError') {
+      throw new Error(`注册表服务请求超时（>${TIMEOUT_MS / 1000}s）`);
+    }
+    throw err;
+  } finally {
+    clearTimeout(timer);
+  }
+}
+
+/** 列表（可按 stage 过滤）。失败抛错，调用方降级。 */
+export async function listModels(stage?: 'dev' | 'staging' | 'prod'): Promise<RegistryModel[]> {
+  const qs = stage ? `?stage=${encodeURIComponent(stage)}` : '';
+  const data = await fetchJson<ListResponse>(`/models${qs}`);
+  return data.models || [];
+}
+
+/** 注册新版本。冲突（同 name+version 已存在）抛 409 错误。 */
+export async function registerModel(params: RegisterModelParams): Promise<RegistryModel> {
+  return fetchJson<RegistryModel>('/models', {
+    method: 'POST',
+    body: JSON.stringify(params),
+  });
+}
+
+/** 提升 dev→staging→prod（逐级）。已在 prod 抛错。 */
+export async function promoteModel(name: string, version: string): Promise<RegistryModel> {
+  return fetchJson<RegistryModel>(
+    `/models/${encodeURIComponent(name)}/${encodeURIComponent(version)}/promote`,
+    { method: 'POST' },
+  );
+}
+
+/** 回滚某 stage 指针到指定版本。 */
+export async function rollbackModel(
+  name: string,
+  version: string,
+  stage: 'dev' | 'staging' | 'prod' = 'prod',
+): Promise<RegistryModel> {
+  const qs = `?version=${encodeURIComponent(version)}&stage=${encodeURIComponent(stage)}`;
+  return fetchJson<RegistryModel>(
+    `/models/${encodeURIComponent(name)}/rollback${qs}`,
+    { method: 'POST' },
+  );
+}
diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
index 1279f25..f97457d 100644
--- a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
@@ -1,17 +1,24 @@
 <script setup lang="ts">
 /**
- * 模型管理（issue #172 [B6] 重构；#D2 样式对齐；2026-08-06 数据回退修复）
+ * 模型管理（issue #172 [B6] 重构；#D2 样式对齐；#183 [E2] 接入注册表 API）
  *
- * 数据语义对齐旧版 web/admin/admin.js：
- * - 模型注册表持久化在 localStorage（key 与旧版相同：iaop.admin.models.v1），
- *   同源（39.101.182.167:8090）下旧版页面积累的数据自动迁移可见；
- * - 首次无数据时用旧版种子数据（含 author / updated_at）；
- * - 提升/回滚写回 localStorage（旧版行为），而非仅改内存。
+ * 数据来源：E1 模型注册表 HTTP API（/api/v1/registry/，服务端持久化），
+ * list / promote / rollback 全部走服务端，两个浏览器互见。
+ * - API 不可达（服务未部署 / 离线）时降级 localStorage 演示模式
+ *   （旧版 iaop.admin.models.v1 数据保留可见，UI 标注「离线演示模式」）；
+ * - 检测到 localStorage 旧数据且服务端列表为空时，提示一次性导入。
  */
-import { ref } from 'vue';
+import { onMounted, ref } from 'vue';
 
 import { Page, VbenButton } from '@vben/common-ui';
 
+import {
+  isRegistryUnavailable,
+  listModels,
+  promoteModel,
+  registerModel,
+  rollbackModel,
+} from '#/api/iaop/registry';
 import type { VxeTableGridOptions } from '#/adapter/vxe-table';
 import { useVbenVxeGrid } from '#/adapter/vxe-table';
 
@@ -34,7 +41,7 @@ function seedModels(): ModelItem[] {
   ];
 }
 
-function loadModels(): ModelItem[] {
+function loadLocalModels(): ModelItem[] | null {
   try {
     const raw = localStorage.getItem(MODELS_KEY);
     if (raw) {
@@ -42,16 +49,75 @@ function loadModels(): ModelItem[] {
       if (Array.isArray(arr) && arr.length > 0) return arr;
     }
   } catch { /* 隐私模式等忽略 */ }
-  const seed = seedModels();
-  saveModels(seed);
-  return seed;
+  return null;
 }
 
-function saveModels(list: ModelItem[]) {
+function saveLocalModels(list: ModelItem[]) {
   try { localStorage.setItem(MODELS_KEY, JSON.stringify(list)); } catch { /* ignore */ }
 }
 
-const models = ref<ModelItem[]>(loadModels());
+/** 把注册表 RegistryModel 适配为表格 ModelItem（updated_at 由 epoch 转 ISO） */
+function fromRegistry(m: { name: string; version: string; stage: string; author?: string; registered_at?: number }): ModelItem {
+  const ts = typeof m.registered_at === 'number' && m.registered_at > 0
+    ? new Date(m.registered_at * 1000).toISOString()
+    : '';
+  return { name: m.name, version: m.version, stage: m.stage, author: m.author || '', updated_at: ts };
+}
+
+const models = ref<ModelItem[]>(loadLocalModels() ?? seedModels());
+/** 在线=走注册表 API；离线=降级 localStorage 演示模式 */
+const online = ref(false);
+/** 导入提示：检测到 localStorage 旧数据且服务端可读时显示 */
+const showImportHint = ref(false);
+const busy = ref(false);
+const errorMsg = ref('');
+
+async function refresh() {
+  busy.value = true;
+  errorMsg.value = '';
+  try {
+    const remote = await listModels();
+    online.value = true;
+    models.value = remote.map(fromRegistry);
+    // 检测旧 localStorage 数据，提示一次性导入（仅服务端列表为空时）
+    const localOld = loadLocalModels();
+    showImportHint.value = !!localOld && localOld.length > 0 && models.value.length === 0;
+  } catch (err) {
+    online.value = false;
+    if (!isRegistryUnavailable(err)) {
+      errorMsg.value = (err as Error)?.message || '加载失败';
+    }
+    // 降级 localStorage（无则种子）
+    models.value = loadLocalModels() ?? seedModels();
+  } finally {
+    busy.value = false;
+    gridApi.query();
+  }
+}
+
+async function importLocalToServer() {
+  const localOld = loadLocalModels();
+  if (!localOld) return;
+  busy.value = true;
+  errorMsg.value = '';
+  let ok = 0;
+  for (const m of localOld) {
+    try {
+      await registerModel({
+        name: m.name,
+        version: m.version,
+        stage: m.stage as 'dev' | 'staging' | 'prod',
+        backbone: 'generic',
+        extra: { author: m.author },
+      });
+      ok++;
+    } catch { /* 冲突（已存在）跳过 */ }
+  }
+  showImportHint.value = false;
+  await refresh();
+  busy.value = false;
+  errorMsg.value = ok > 0 ? `已导入 ${ok} 条到服务端` : '无可导入数据（服务端已存在）';
+}
 
 const gridOptions: VxeTableGridOptions = {
   rowConfig: { keyField: 'name' },
@@ -81,26 +147,87 @@ const gridOptions: VxeTableGridOptions = {
 
 const [Grid, gridApi] = useVbenVxeGrid({ gridOptions });
 
-function touch(m: ModelItem) {
+function touchLocal(m: ModelItem) {
   m.updated_at = new Date().toISOString();
-  saveModels(models.value);
+  saveLocalModels(models.value);
   gridApi.query();
 }
 
-function promote(m: ModelItem) {
+async function promote(m: ModelItem) {
+  if (online.value) {
+    busy.value = true;
+    errorMsg.value = '';
+    try {
+      const updated = await promoteModel(m.name, m.version);
+      Object.assign(m, fromRegistry(updated));
+      m.updated_at = new Date().toISOString();
+    } catch (err) {
+      errorMsg.value = (err as Error)?.message || '提升失败';
+    } finally {
+      busy.value = false;
+      gridApi.query();
+    }
+    return;
+  }
+  // 离线降级
   if (m.stage === 'dev') m.stage = 'staging';
   else if (m.stage === 'staging') m.stage = 'prod';
-  touch(m);
+  touchLocal(m);
 }
-function rollback(m: ModelItem) {
+
+async function rollback(m: ModelItem) {
+  if (online.value) {
+    busy.value = true;
+    errorMsg.value = '';
+    try {
+      // 回滚到上一阶段指针：prod→staging、staging→dev
+      const prev = m.stage === 'prod' ? 'staging' : 'dev';
+      const updated = await rollbackModel(m.name, m.version, prev as 'dev' | 'staging' | 'prod');
+      Object.assign(m, fromRegistry(updated));
+      m.updated_at = new Date().toISOString();
+    } catch (err) {
+      errorMsg.value = (err as Error)?.message || '回滚失败';
+    } finally {
+      busy.value = false;
+      gridApi.query();
+    }
+    return;
+  }
+  // 离线降级
   if (m.stage === 'prod') m.stage = 'staging';
   else if (m.stage === 'staging') m.stage = 'dev';
-  touch(m);
+  touchLocal(m);
 }
+
+onMounted(refresh);
 </script>
 
 <template>
   <Page title="模型管理" description="PRD 5.3 · 模板注册表 / 版本阶段流转">
+    <template #extra>
+      <a-tag v-if="!online" color="orange">离线演示模式（注册表服务不可达，降级 localStorage）</a-tag>
+      <a-tag v-else color="green">在线（服务端注册表）</a-tag>
+      <VbenButton size="small" variant="outline" :disabled="busy" @click="refresh">刷新</VbenButton>
+    </template>
+    <a-alert
+      v-if="showImportHint"
+      type="info"
+      show-icon
+      message="检测到本地演示数据，是否一次性导入服务端注册表？"
+      description="导入后模型管理将完全落服务端，多浏览器互见。已存在的同名同版本会跳过。"
+      style="margin-bottom: 12px"
+    >
+      <template #action>
+        <VbenButton size="small" :disabled="busy" @click="importLocalToServer">导入</VbenButton>
+      </template>
+    </a-alert>
+    <a-alert
+      v-if="errorMsg"
+      :type="online ? 'error' : 'warning'"
+      show-icon
+      :message="errorMsg"
+      style="margin-bottom: 12px"
+    />
     <Grid>
       <template #stage="{ row }">
         <a-tag :color="row.stage === 'prod' ? 'green' : row.stage === 'staging' ? 'orange' : 'blue'">{{ row.stage }}</a-tag>
@@ -109,8 +236,8 @@ function rollback(m: ModelItem) {
         {{ (row.updated_at || '').slice(0, 10) }}
       </template>
       <template #action="{ row }">
-        <VbenButton size="small" :disabled="row.stage === 'prod'" @click="promote(row)">提升</VbenButton>
-        <VbenButton size="small" variant="outline" :disabled="row.stage === 'dev'" @click="rollback(row)">回滚</VbenButton>
+        <VbenButton size="small" :disabled="row.stage === 'prod' || busy" @click="promote(row)">提升</VbenButton>
+        <VbenButton size="small" variant="outline" :disabled="row.stage === 'dev' || busy" @click="rollback(row)">回滚</VbenButton>
       </template>
     </Grid>
   </Page>
diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
index 657baa0..2b74473 100644
--- a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
@@ -1,17 +1,63 @@
 <script setup lang="ts">
-import { ref } from 'vue';
+/**
+ * 模板版本发布（issue #183 [E2]：发布 = 注册新版本到注册表）
+ *
+ * - 列表优先读注册表 API（/api/v1/registry/models），失败降级静态演示数据；
+ * - 「发布新版本」= 调 registerModel 注册到服务端注册表；注册表不可达时
+ *   降级为本地新增一条（仅前端可见，提示离线）。
+ */
+import { onMounted, ref } from 'vue';
 
 import { Page, VbenButton } from '@vben/common-ui';
 import { MaterialSymbolsAdd } from '@vben/icons';
 
+import { isRegistryUnavailable, listModels, registerModel } from '#/api/iaop/registry';
 import type { VxeTableGridOptions } from '#/adapter/vxe-table';
 import { useVbenVxeGrid } from '#/adapter/vxe-table';
 
-const rows = ref([
+interface VersionRow {
+  version: string;
+  stage: string;
+  time: string;
+  author: string;
+  note: string;
+}
+
+const STATIC_ROWS: VersionRow[] = [
   { version: 'v1.0.0', stage: 'prod', time: '2026-08-05 10:00', author: 'bot_dev1', note: 'Ti 一期发布' },
   { version: 'v0.9.0', stage: 'staging', time: '2026-08-04 16:30', author: 'bot_dev1', note: '验收候选' },
   { version: 'v0.8.0', stage: 'dev', time: '2026-08-03 09:00', author: 'bot_dev1', note: '布局资产初版' },
-]);
+];
+
+const rows = ref<VersionRow[]>([...STATIC_ROWS]);
+const online = ref(false);
+const busy = ref(false);
+const errorMsg = ref('');
+
+async function refresh() {
+  busy.value = true;
+  errorMsg.value = '';
+  try {
+    const remote = await listModels();
+    online.value = true;
+    rows.value = remote.map((m) => ({
+      version: m.version,
+      stage: m.stage,
+      time: typeof m.registered_at === 'number' && m.registered_at > 0
+        ? new Date(m.registered_at * 1000).toISOString().slice(0, 16).replace('T', ' ')
+        : '',
+      author: m.author || '',
+      note: m.description || '',
+    }));
+  } catch (err) {
+    online.value = false;
+    rows.value = [...STATIC_ROWS];
+    if (!isRegistryUnavailable(err)) errorMsg.value = (err as Error)?.message || '加载失败';
+  } finally {
+    busy.value = false;
+    gridApi.query();
+  }
+}
 
 const gridOptions: VxeTableGridOptions = {
   rowConfig: { keyField: 'version' },
@@ -39,20 +85,46 @@ const gridOptions: VxeTableGridOptions = {
 
 const [Grid, gridApi] = useVbenVxeGrid({ gridOptions });
 
-function publish() {
-  rows.value.unshift({
-    version: 'v1.0.1', stage: 'staging', time: new Date().toISOString().slice(0, 16).replace('T', ' '),
-    author: 'admin', note: '手动发布',
-  });
+async function publish() {
+  const version = `v1.0.${rows.value.length + 1}`;
+  const time = new Date().toISOString().slice(0, 16).replace('T', ' ');
+  if (online.value) {
+    busy.value = true;
+    errorMsg.value = '';
+    try {
+      // 发布 = 注册新版本到注册表（模板布局资产，backbone=generic）
+      await registerModel({
+        name: 'ti_layout',
+        version: version.replace(/^v/, ''),
+        stage: 'dev',
+        backbone: 'generic',
+        description: '模板布局资产发布',
+      });
+      await refresh();
+      errorMsg.value = `已发布 ${version} 到注册表`;
+    } catch (err) {
+      errorMsg.value = (err as Error)?.message || '发布失败';
+    } finally {
+      busy.value = false;
+    }
+    return;
+  }
+  // 离线降级：仅前端新增
+  rows.value.unshift({ version, stage: 'staging', time, author: 'admin', note: '手动发布（离线）' });
   gridApi.query();
 }
+
+onMounted(refresh);
 </script>
 
 <template>
   <Page title="模板版本发布" description="PRD 5.7 · 版本管理 / 阶段流转">
     <template #extra>
-      <VbenButton variant="solid" @click="publish"><MaterialSymbolsAdd class="size-4" />发布新版本</VbenButton>
+      <a-tag v-if="!online" color="orange">离线演示</a-tag>
+      <a-tag v-else color="green">在线（服务端注册表）</a-tag>
+      <VbenButton variant="solid" :disabled="busy" @click="publish"><MaterialSymbolsAdd class="size-4" />发布新版本</VbenButton>
     </template>
+    <a-alert v-if="errorMsg" :type="online ? 'info' : 'warning'" show-icon :message="errorMsg" style="margin-bottom: 12px" />
     <Grid>
       <template #stage="{ row }">
         <a-tag :color="row.stage === 'prod' ? 'green' : row.stage === 'staging' ? 'orange' : 'blue'">{{ row.stage }}</a-tag>