diff --git a/frontend/src/api/index.ts b/frontend/src/api/index.ts
index 0d41c26..4118637 100644
--- a/frontend/src/api/index.ts
+++ b/frontend/src/api/index.ts
@@ -891,6 +891,10 @@ export const adminAPI = {
   getAgentToolPolicy: (id: string) => get<any>(`/admin/agents/${id}/tool-policy`),
   setAgentToolPolicy: (id: string, toolPolicy: any) => put<any>(`/admin/agents/${id}/tool-policy`, { tool_policy: toolPolicy }),
 
+  // Phase 3.3: 多 Agent 编排图 (orchestration)
+  getAgentOrchestration: (id: string) => get<any>(`/admin/agents/${id}/orchestration`),
+  setAgentOrchestration: (id: string, orchestration: any) => put<any>(`/admin/agents/${id}/orchestration`, { orchestration }),
+
   getAdminAvailableSkills: (params?: any) => {
 
     const query = params ? '?' + Object.entries(params).filter(([_, v]) => v !== undefined && v !== '').map(([k, v]) => `${k}=${v}`).join('&') : '';
diff --git a/frontend/src/pages/admin/Agents.tsx b/frontend/src/pages/admin/Agents.tsx
index cfd6f71..b99d1d0 100644
--- a/frontend/src/pages/admin/Agents.tsx
+++ b/frontend/src/pages/admin/Agents.tsx
@@ -109,6 +109,9 @@ const Agents: React.FC = () => {
   const [availableMcps, setAvailableMcps] = useState<any[]>([]);
   // Tool policy (sandbox) — null means disabled / no policy
   const [toolPolicy, setToolPolicy] = useState<any>(null);
+  // Phase 3.3: orchestration graph editor (JSON text + error)
+  const [orchestrationText, setOrchestrationText] = useState<string>('');
+  const [orchestrationError, setOrchestrationError] = useState<string>('');
 
   // Toast
   const [toast, setToast] = useState<{ msg: string; type: 'success' | 'error' } | null>(null);
@@ -195,6 +198,8 @@ const Agents: React.FC = () => {
       reasoning_enabled: false,
     });
     setToolPolicy(null);
+    setOrchestrationText('');
+    setOrchestrationError('');
     setShowModal(true);
   };
 
@@ -203,6 +208,7 @@ const Agents: React.FC = () => {
     setEditingAgent(agent);
     await loadAvailable();
     await openEditLoadPolicy(agent.id);
+    await openEditLoadOrchestration(agent.id);
 
     const cfg = agent.config || {};
     setForm({
@@ -231,6 +237,17 @@ const Agents: React.FC = () => {
       setToolPolicy(null);
     }
   };
+  // Phase 3.3: 载入已有编排图
+  const openEditLoadOrchestration = async (agentId: string) => {
+    try {
+      const oRes = await adminAPI.getAgentOrchestration(agentId) as any;
+      const og = oRes?.data?.orchestration;
+      setOrchestrationText(og ? JSON.stringify(og, null, 2) : '');
+      setOrchestrationError('');
+    } catch {
+      setOrchestrationText('');
+    }
+  };
   const openDetail = async (agent: Agent) => {
     setDetailAgent(agent);
     setShowDetail(true);
@@ -716,6 +733,89 @@ const Agents: React.FC = () => {
                   )}
                 </div>
               )}
+              {editingAgent && (
+                <div style={{ gridColumn: '1 / -1' }}>
+                  <hr style={{ border: 'none', borderTop: '1px solid #E5E7EB', margin: '16px 0' }} />
+                  <div style={{ fontWeight: 600, marginBottom: 8 }}>🕸️ 多 Agent 编排图 (orchestration)</div>
+                  <div style={{ fontSize: 12, color: '#6B7280', marginBottom: 8 }}>
+                    用有向图描述多个智能体的协作：节点类型 llm / local / external / reduce，边 from→to 表示数据流。留空表示不启用编排（走原对话逻辑）。
+                  </div>
+                  <textarea
+                    className="admin-form-input"
+                    rows={14}
+                    style={{ fontFamily: 'ui-monospace, SFMono-Regular, Menlo, monospace', fontSize: 12, whiteSpace: 'pre', overflowWrap: 'normal', width: '100%' }}
+                    value={orchestrationText}
+                    spellCheck={false}
+                    onChange={e => { setOrchestrationText(e.target.value); setOrchestrationError(''); }}
+                    placeholder={'{\n  "nodes": [{"id":"router","type":"llm"},{"id":"worker","type":"local","agent_id":"子智能体ID"},{"id":"summary","type":"reduce"}],\n  "edges": [{"from":"router","to":"worker"},{"from":"worker","to":"summary"}]\n}'}
+                  />
+                  {orchestrationError && (
+                    <div style={{ color: '#DC2626', fontSize: 12, marginTop: 6, whiteSpace: 'pre-wrap' }}>{orchestrationError}</div>
+                  )}
+                  <div style={{ display: 'flex', gap: 8, marginTop: 8, flexWrap: 'wrap' }}>
+                    <button
+                      className="admin-btn"
+                      onClick={() => {
+                        try {
+                          const parsed = orchestrationText.trim() ? JSON.parse(orchestrationText) : null;
+                          setOrchestrationText(parsed ? JSON.stringify(parsed, null, 2) : '');
+                          setOrchestrationError('');
+                        } catch (e: any) {
+                          setOrchestrationError('JSON 格式错误: ' + (e.message || e));
+                        }
+                      }}
+                    >格式化</button>
+                    <button
+                      className="admin-btn"
+                      onClick={() => {
+                        const tpl = {
+                          nodes: [
+                            { id: 'router', type: 'llm', system_prompt: '判断用户意图并路由到合适的处理智能体。' },
+                            { id: 'worker', type: 'local', agent_id: '在此填入子智能体ID' },
+                            { id: 'summary', type: 'reduce', system_prompt: '汇总各子任务结果，输出面向用户的最终答复。' },
+                          ],
+                          edges: [
+                            { from: 'router', to: 'worker' },
+                            { from: 'worker', to: 'summary' },
+                          ],
+                        };
+                        setOrchestrationText(JSON.stringify(tpl, null, 2));
+                        setOrchestrationError('');
+                      }}
+                    >填入示例</button>
+                    <button
+                      className="admin-btn primary"
+                      onClick={async () => {
+                        try {
+                          const text = orchestrationText.trim();
+                          const parsed = text ? JSON.parse(text) : null;
+                          await adminAPI.setAgentOrchestration(editingAgent!.id, parsed);
+                          setOrchestrationError('');
+                          showToast('编排图已保存');
+                        } catch (e: any) {
+                          const msg = e?.response?.data?.detail || e?.message || String(e);
+                          setOrchestrationError('保存失败: ' + msg);
+                        }
+                      }}
+                    >保存编排图</button>
+                    {orchestrationText.trim() && (
+                      <button
+                        className="admin-btn"
+                        onClick={async () => {
+                          try {
+                            await adminAPI.setAgentOrchestration(editingAgent!.id, null);
+                            setOrchestrationText('');
+                            setOrchestrationError('');
+                            showToast('编排图已清除');
+                          } catch (e: any) {
+                            setOrchestrationError('清除失败: ' + (e?.message || e));
+                          }
+                        }}
+                      >清除编排</button>
+                    )}
+                  </div>
+                </div>
+              )}
             </div>
             <div className="modal-footer">
               <button className="admin-btn" onClick={() => setShowModal(false)}>取消</button>