diff --git a/software/web/src/api/devices.ts b/software/web/src/api/devices.ts
index b030663..4d68666 100644
--- a/software/web/src/api/devices.ts
+++ b/software/web/src/api/devices.ts
@@ -79,6 +79,9 @@ export const cabinetApi = {
   delete: (id: number) => api.delete(`/cabinets/${id}`),
   regenerateAuth: (id: number) => api.post<{ auth_str: string }>(`/cabinets/${id}/regenerate-auth`),
   getDetail: (id: number) => api.get<CabinetDetail>(`/cabinets/${id}`),
+  // 接触器控制
+  powOn: (id: number) => api.post(`/cabinets/${id}/pow-on`),
+  powOff: (id: number) => api.post(`/cabinets/${id}/pow-off`),
 };
 
 // 组织树 API
diff --git a/software/web/src/pages/devices/cabinet.tsx b/software/web/src/pages/devices/cabinet.tsx
index ed85ca7..68ff9e7 100644
--- a/software/web/src/pages/devices/cabinet.tsx
+++ b/software/web/src/pages/devices/cabinet.tsx
@@ -13,6 +13,8 @@ import {
   Grid,
   Button,
   Descriptions,
+  Message,
+  Modal,
 } from '@arco-design/web-react';
 import { IconLeft, IconDesktop } from '@arco-design/web-react/icon';
 import { cabinetApi, type CabinetDetail } from '@/api/devices';
@@ -41,6 +43,7 @@ export default function CabinetDetail() {
   const navigate = useNavigate();
   const [loading, setLoading] = useState(true);
   const [detail, setDetail] = useState<CabinetDetail | null>(null);
+  const [powLoading, setPowLoading] = useState(false);
 
   useEffect(() => {
     if (!id) return;
@@ -54,6 +57,52 @@ export default function CabinetDetail() {
       .finally(() => setLoading(false));
   }, [id]);
 
+  /** 接触器合闸 */
+  const handlePowOn = () => {
+    if (!id) return;
+    Modal.confirm({
+      title: '确认操作',
+      content: '确定要合闸恢复380V供电吗？',
+      onOk: async () => {
+        setPowLoading(true);
+        try {
+          await cabinetApi.powOn(Number(id));
+          Message.success('合闸指令已发送');
+          // 刷新详情
+          const res = await cabinetApi.getDetail(Number(id));
+          setDetail(res.data);
+        } catch {
+          Message.error('操作失败');
+        } finally {
+          setPowLoading(false);
+        }
+      },
+    });
+  };
+
+  /** 接触器分闸 */
+  const handlePowOff = () => {
+    if (!id) return;
+    Modal.confirm({
+      title: '确认操作',
+      content: '确定要分闸切断380V供电吗？',
+      onOk: async () => {
+        setPowLoading(true);
+        try {
+          await cabinetApi.powOff(Number(id));
+          Message.success('分闸指令已发送');
+          // 刷新详情
+          const res = await cabinetApi.getDetail(Number(id));
+          setDetail(res.data);
+        } catch {
+          Message.error('操作失败');
+        } finally {
+          setPowLoading(false);
+        }
+      },
+    });
+  };
+
   if (loading) {
     return (
       <Card>
@@ -104,17 +153,37 @@ export default function CabinetDetail() {
 
       {/* 柜子信息 */}
       <Card title="基本信息" size="small">
-        <Descriptions
-          data={[
-            { label: '抽象 ID', value: detail.abstract_id },
-            { label: 'IMEI', value: detail.imei },
-            { label: '名称', value: detail.name || '-' },
-            { label: '状态', value: cabStatus.label },
-          ]}
-          column={2}
-          layout="horizontal"
-          labelStyle={{ paddingRight: 36 }}
-        />
+        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start' }}>
+          <Descriptions
+            data={[
+              { label: '抽象 ID', value: detail.abstract_id },
+              { label: 'IMEI', value: detail.imei },
+              { label: '名称', value: detail.name || '-' },
+              { label: '状态', value: cabStatus.label },
+            ]}
+            column={2}
+            layout="horizontal"
+            labelStyle={{ paddingRight: 36 }}
+          />
+          <div style={{ display: 'flex', gap: 8 }}>
+            <Button
+              type="primary"
+              status="success"
+              loading={powLoading}
+              onClick={handlePowOn}
+            >
+              合闸供电
+            </Button>
+            <Button
+              type="primary"
+              status="danger"
+              loading={powLoading}
+              onClick={handlePowOff}
+            >
+              分闸断电
+            </Button>
+          </div>
+        </div>
       </Card>
 
       {/* 仓控板列表 */}