diff --git a/src/admin/pages/MindSearchPage.tsx b/src/admin/pages/MindSearchPage.tsx
index 4b3df2c..8fe356a 100644
--- a/src/admin/pages/MindSearchPage.tsx
+++ b/src/admin/pages/MindSearchPage.tsx
@@ -1,12 +1,23 @@
 import { useEffect, useState } from 'react';
-import { getMindSearchConfig, testMindSearchService, updateMindSearchConfig } from '../../api/client';
-import type { MindSearchConfig, MindSearchRoutes, MindSearchService } from '../../types';
+import {
+  getMindSearchConfig,
+  listLlmProviderKeys,
+  testLlmProviderKey,
+  testMindSearchService,
+  updateMindSearchConfig,
+} from '../../api/client';
+import type {
+  LlmProviderKeyRow,
+  MindSearchConfig,
+  MindSearchRoutes,
+  MindSearchService,
+} from '../../types';
 
 const builtInServices: MindSearchService[] = [
   { id: 'searxng', name: 'SearXNG', kind: 'provider', adapter: 'searxng', capabilities: ['search.web', 'search.news'], endpoint: '', healthPath: '/config', enabled: false, timeoutMs: 8000, priority: 100 },
   { id: 'github', name: 'GitHub Code', kind: 'provider', adapter: 'github', capabilities: ['search.code'], endpoint: 'https://api.github.com/search/code', healthPath: '', enabled: false, timeoutMs: 8000, priority: 90 },
   { id: 'reader', name: 'Safe Reader', kind: 'reader', adapter: 'reader', capabilities: ['search.read'], endpoint: '', healthPath: '', enabled: false, timeoutMs: 8000, priority: 80 },
-  { id: 'deep-search', name: 'TKMind Deep Search', kind: 'orchestrator', adapter: 'research-http', capabilities: ['search.web', 'research.plan', 'research.execute'], endpoint: 'http://127.0.0.1:20100', healthPath: '/health', enabled: false, timeoutMs: 120000, priority: 100 },
+  { id: 'deep-search', name: 'TKMind Deep Search', kind: 'orchestrator', adapter: 'research-http', capabilities: ['search.web', 'research.plan', 'research.execute'], endpoint: 'http://127.0.0.1:20100', healthPath: '/health', enabled: false, timeoutMs: 120000, priority: 100, llmProviderKeyId: '', llmModel: '' },
 ];
 
 const initial: MindSearchConfig = {
@@ -38,13 +49,18 @@ function mergeConfig(config: MindSearchConfig): MindSearchConfig {
 
 export function MindSearchPage() {
   const [config, setConfig] = useState(initial);
+  const [llmKeys, setLlmKeys] = useState<LlmProviderKeyRow[]>([]);
   const [meta, setMeta] = useState<{ source?: string; updatedAt?: number | null; updatedBy?: string | null }>({});
   const [message, setMessage] = useState('加载配置中…');
 
   useEffect(() => {
-    getMindSearchConfig()
-      .then((result) => {
+    Promise.all([
+      getMindSearchConfig(),
+      listLlmProviderKeys().catch(() => [] as LlmProviderKeyRow[]),
+    ])
+      .then(([result, keys]) => {
         setConfig(mergeConfig(result.config));
+        setLlmKeys(keys.filter((key) => key.status === 'active'));
         setMeta(result);
         setMessage('');
       })
@@ -88,6 +104,8 @@ export function MindSearchPage() {
         enabled: false,
         timeoutMs: 30000,
         priority: 100,
+        llmProviderKeyId: '',
+        llmModel: '',
       }],
     }));
   };
@@ -108,6 +126,21 @@ export function MindSearchPage() {
       setMessage(error instanceof Error ? error.message : '服务测试失败');
     }
   };
+  const runLlmTest = async (service: MindSearchService) => {
+    if (!service.llmProviderKeyId || !service.llmModel) {
+      setMessage('请先选择 Deep Search 的 LLM 配置和模型');
+      return;
+    }
+    setMessage(`测试 ${service.llmModel} 中…`);
+    try {
+      const result = await testLlmProviderKey(service.llmProviderKeyId, service.llmModel);
+      setMessage(result.ok
+        ? `LLM 通过：${result.model ?? service.llmModel}${result.latencyMs == null ? '' : `；${result.latencyMs}ms`}`
+        : `LLM 失败：${result.message ?? '模型连接失败'}`);
+    } catch (error) {
+      setMessage(error instanceof Error ? error.message : 'LLM 测试失败');
+    }
+  };
 
   return (
     <section className="admin-page">
@@ -145,7 +178,9 @@ export function MindSearchPage() {
         <h2>服务注册表</h2>
         <p>服务独立部署；后台只管理连接、路由和健康检查，不直接操作 Docker 或生产进程。测试使用已保存配置。</p>
         <div className="search-service-grid">
-          {config.services.map((service) => (
+          {config.services.map((service) => {
+            const selectedLlmKey = llmKeys.find((key) => key.id === service.llmProviderKeyId);
+            return (
             <fieldset key={service.id} className="search-service-card">
               <legend>{service.name}（{service.id}）</legend>
               <label className="search-service-toggle"><input type="checkbox" checked={service.enabled} onChange={(event) => updateService(service.id, { enabled: event.target.checked })} /><span>启用服务</span></label>
@@ -173,13 +208,52 @@ export function MindSearchPage() {
                 <label className="form-span-all"><span>Capabilities</span><input value={service.capabilities.join(', ')} onChange={(event) => updateService(service.id, { capabilities: event.target.value.split(',').map((item) => item.trim()).filter(Boolean) })} /></label>
                 <label><span>超时（毫秒）</span><input type="number" min={1000} max={120000} value={service.timeoutMs} onChange={(event) => updateService(service.id, { timeoutMs: Number(event.target.value) })} /></label>
                 <label><span>优先级</span><input type="number" min={1} max={1000} value={service.priority} onChange={(event) => updateService(service.id, { priority: Number(event.target.value) })} /></label>
+                {service.adapter === 'research-http' && <>
+                  <label className="form-span-all">
+                    <span>规划与报告 LLM（可选）</span>
+                    <select
+                      value={service.llmProviderKeyId ?? ''}
+                      onChange={(event) => {
+                        const key = llmKeys.find((item) => item.id === event.target.value);
+                        updateService(service.id, {
+                          llmProviderKeyId: event.target.value,
+                          llmModel: key?.defaultModel ?? '',
+                        });
+                      }}
+                    >
+                      <option value="">不使用 LLM（确定性降级）</option>
+                      {service.llmProviderKeyId && !selectedLlmKey
+                        && <option value={service.llmProviderKeyId}>原 LLM 配置已停用或删除</option>}
+                      {llmKeys.map((key) => (
+                        <option key={key.id} value={key.id}>{key.name} · {key.providerLabel}</option>
+                      ))}
+                    </select>
+                  </label>
+                  <label className="form-span-all">
+                    <span>模型</span>
+                    <select
+                      value={service.llmModel ?? ''}
+                      disabled={!selectedLlmKey}
+                      onChange={(event) => updateService(service.id, { llmModel: event.target.value })}
+                    >
+                      {!selectedLlmKey && <option value="">请先选择 LLM 配置</option>}
+                      {selectedLlmKey && service.llmModel && !selectedLlmKey.models.includes(service.llmModel)
+                        && <option value={service.llmModel}>原模型已不可用：{service.llmModel}</option>}
+                      {selectedLlmKey?.models.map((model) => <option key={model} value={model}>{model}</option>)}
+                    </select>
+                  </label>
+                  <p className="search-llm-hint form-span-all">密钥复用“统一模型中心”，不会保存到 MindSearch 配置或下发给 Deep Search 服务。</p>
+                </>}
               </div>
               <div className="search-service-actions">
                 <button className="send-btn" type="button" onClick={() => runServiceTest(service.id)}>测试已保存配置</button>
-                {!['searxng', 'github', 'reader'].includes(service.id) && <button type="button" onClick={() => removeService(service.id)}>移除</button>}
+                {service.adapter === 'research-http' && service.llmProviderKeyId && service.llmModel
+                  && <button type="button" onClick={() => runLlmTest(service)}>测试 LLM</button>}
+                {!['searxng', 'github', 'reader', 'deep-search'].includes(service.id) && <button type="button" onClick={() => removeService(service.id)}>移除</button>}
               </div>
             </fieldset>
-          ))}
+            );
+          })}
         </div>
         <button className="send-btn" type="button" onClick={addService}>添加 Research Service</button>
 
diff --git a/src/index.css b/src/index.css
index f193005..fc2614d 100644
--- a/src/index.css
+++ b/src/index.css
@@ -615,6 +615,13 @@ body,
   margin-top: 12px;
 }
 
+.search-llm-hint {
+  margin: -2px 0 0;
+  color: var(--color-text-muted);
+  font-size: 12px;
+  line-height: 1.55;
+}
+
 .form-span-all {
   grid-column: 1 / -1;
 }
diff --git a/src/types.ts b/src/types.ts
index 0da7d6b..5faacbf 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -640,6 +640,8 @@ export type MindSearchService = {
   enabled: boolean;
   timeoutMs: number;
   priority: number;
+  llmProviderKeyId?: string;
+  llmModel?: string;
 };
 
 export type MindSearchRoutes = {