diff --git a/backend/src/routes/platform.routes.ts b/backend/src/routes/platform.routes.ts
index 0f1bd3f..31ef391 100644
--- a/backend/src/routes/platform.routes.ts
+++ b/backend/src/routes/platform.routes.ts
@@ -259,6 +259,53 @@ router.put('/orgs/:id', async (req: AuthRequest, res, next) => {
   }
 })
 
+/**
+ * 编辑企业管理员（姓名、手机号、可选重置密码）
+ */
+router.put('/orgs/:id/admin', async (req: AuthRequest, res, next) => {
+  try {
+    const { adminName, adminPhone, adminPassword } = req.body as {
+      adminName?: string; adminPhone?: string; adminPassword?: string
+    }
+
+    // 找到该企业的 ADMIN 角色用户（第一个管理员）
+    const admin = await prisma.user.findFirst({
+      where: { orgId: req.params.id, role: 'ADMIN' },
+      orderBy: { createdAt: 'asc' },
+    })
+
+    if (!admin) {
+      return res.status(404).json({ success: false, error: { code: 'NOT_FOUND', message: '该企业未设置管理员' } })
+    }
+
+    // 如果修改了手机号，检查是否已被其他用户占用
+    if (adminPhone && adminPhone !== admin.phone) {
+      const existing = await prisma.user.findUnique({ where: { phone: adminPhone } })
+      if (existing && existing.id !== admin.id) {
+        return res.status(409).json({ success: false, error: { code: 'DUPLICATE_PHONE', message: '该手机号已被使用' } })
+      }
+    }
+
+    const updateData: any = {}
+    if (adminName) updateData.name = adminName
+    if (adminPhone) updateData.phone = adminPhone
+    if (adminPassword && adminPassword.length >= 8) {
+      const bcrypt = require('bcryptjs')
+      updateData.passwordHash = await bcrypt.hash(adminPassword, 10)
+    }
+
+    const updated = await prisma.user.update({
+      where: { id: admin.id },
+      data: updateData,
+      select: { id: true, name: true, phone: true, role: true },
+    })
+
+    res.json({ success: true, data: updated })
+  } catch (err) {
+    next(err)
+  }
+})
+
 /**
  * 删除企业（级联删除所有数据）
  */
diff --git a/frontend/src/pages/platform/PlatformOrgs.tsx b/frontend/src/pages/platform/PlatformOrgs.tsx
index 4e47f7a..af8ece2 100644
--- a/frontend/src/pages/platform/PlatformOrgs.tsx
+++ b/frontend/src/pages/platform/PlatformOrgs.tsx
@@ -35,6 +35,8 @@ export default function PlatformOrgs() {
     adminName: '管理员', adminPhone: '', adminPassword: '12345678',
   })
   const [creating, setCreating] = useState(false)
+  const [editAdmin, setEditAdmin] = useState({ name: '', phone: '', password: '' })
+  const [savingAdmin, setSavingAdmin] = useState(false)
 
   const fetchOrgs = async () => {
     setLoading(true)
@@ -55,6 +57,21 @@ export default function PlatformOrgs() {
 
   const totalPages = Math.ceil(total / pageSize)
 
+  const handleEditOrg = async (org: Org) => {
+    setEditOrg(org)
+    setEditAdmin({ name: '', phone: '', password: '' })
+    // 加载企业管理员信息
+    try {
+      const res = await api.get(`/platform/orgs/${org.id}`) as any
+      const admin = res.data.users?.find((u: any) => u.role === 'ADMIN')
+      if (admin) {
+        setEditAdmin({ name: admin.name || '', phone: admin.phone || '', password: '' })
+      }
+    } catch {
+      // 忽略
+    }
+  }
+
   const handleSaveEdit = async () => {
     if (!editOrg) return
     try {
@@ -66,6 +83,14 @@ export default function PlatformOrgs() {
         contactName: editOrg.contactName,
         contactPhone: editOrg.contactPhone,
       })
+      // 如果管理员信息有改动，同步保存
+      if (editAdmin.name || editAdmin.phone || editAdmin.password) {
+        await api.put(`/platform/orgs/${editOrg.id}/admin`, {
+          adminName: editAdmin.name || undefined,
+          adminPhone: editAdmin.phone || undefined,
+          adminPassword: editAdmin.password || undefined,
+        })
+      }
       setEditOrg(null)
       fetchOrgs()
     } catch (err: any) {
@@ -183,7 +208,7 @@ export default function PlatformOrgs() {
                 <td className="px-4 py-3">
                   <div className="flex items-center justify-center gap-1">
                     <button
-                      onClick={() => setEditOrg(org)}
+                      onClick={() => handleEditOrg(org)}
                       className="p-1.5 rounded text-gray-400 hover:text-primary hover:bg-gray-100"
                       title="编辑"
                     >
@@ -316,6 +341,26 @@ export default function PlatformOrgs() {
                 <Label>联系电话</Label>
                 <Input value={editOrg.contactPhone || ''} onChange={(e) => setEditOrg({ ...editOrg, contactPhone: e.target.value })} />
               </div>
+
+              {/* 管理员账号 */}
+              <div className="border-t border-gray-100 pt-3 mt-3">
+                <h3 className="text-xs text-primary font-medium mb-3">企业管理员</h3>
+                <div className="grid grid-cols-2 gap-3">
+                  <div>
+                    <Label>管理员姓名</Label>
+                    <Input value={editAdmin.name} onChange={(e) => setEditAdmin({ ...editAdmin, name: e.target.value })} />
+                  </div>
+                  <div>
+                    <Label>管理员手机号</Label>
+                    <Input value={editAdmin.phone} maxLength={11} onChange={(e) => setEditAdmin({ ...editAdmin, phone: e.target.value })} />
+                  </div>
+                  <div className="col-span-2">
+                    <Label>重置密码（留空则不修改）</Label>
+                    <Input placeholder="输入新密码（至少8位）" value={editAdmin.password} onChange={(e) => setEditAdmin({ ...editAdmin, password: e.target.value })} />
+                  </div>
+                </div>
+              </div>
+
               <div className="flex gap-2 pt-2">
                 <Button className="flex-1" onClick={handleSaveEdit}>保存</Button>
                 <Button variant="secondary" onClick={() => setEditOrg(null)}>取消</Button>