diff --git a/src/api/adminUsers.js b/src/api/adminUsers.js
index b4b92e6..d607d4d 100644
--- a/src/api/adminUsers.js
+++ b/src/api/adminUsers.js
@@ -20,6 +20,7 @@ function adminRequest(token, path, options = {}) {
  *   page?: number,
  *   pageSize?: number,
  *   username?: string,
+ *   deviceSerial?: string,
  *   oemId?: number | null,
  *   agentId?: number | null,
  *   roleId?: number | null,
@@ -27,7 +28,7 @@ function adminRequest(token, path, options = {}) {
  */
 export function listAdminUsersApi(
   token,
-  { page = 1, pageSize = 20, username, oemId, agentId, roleId } = {},
+  { page = 1, pageSize = 20, username, deviceSerial, oemId, agentId, roleId } = {},
 ) {
   const query = new URLSearchParams({
     page: String(page),
@@ -35,6 +36,8 @@ export function listAdminUsersApi(
   });
   const trimmed = username?.trim();
   if (trimmed) query.set("username", trimmed);
+  const serial = deviceSerial?.trim();
+  if (serial) query.set("device_serial", serial);
   if (oemId != null) query.set("oem_id", String(oemId));
   if (agentId != null) query.set("agent_id", String(agentId));
   if (roleId != null) query.set("role_id", String(roleId));
diff --git a/src/views/admin/AdminUsersView.vue b/src/views/admin/AdminUsersView.vue
index ce76239..41e80c9 100644
--- a/src/views/admin/AdminUsersView.vue
+++ b/src/views/admin/AdminUsersView.vue
@@ -35,6 +35,7 @@ const agentOptions = ref([]);
 
 const filters = ref({
   username: "",
+  device_serial: "",
   oem_id: null,
   agent_id: null,
 });
@@ -122,6 +123,7 @@ async function loadUsers() {
     page: page.value,
     pageSize: pageSize.value,
     username: filters.value.username,
+    deviceSerial: filters.value.device_serial,
     oemId: filters.value.oem_id,
     agentId: filters.value.agent_id,
   });
@@ -151,7 +153,7 @@ async function applyFilters() {
 }
 
 async function resetFilters() {
-  filters.value = { username: "", oem_id: null, agent_id: null };
+  filters.value = { username: "", device_serial: "", oem_id: null, agent_id: null };
   page.value = 1;
   await loadUsers();
 }
@@ -305,6 +307,12 @@ onMounted(async () => {
         class="admin-users__search"
         @keyup.enter="applyFilters"
       />
+      <InputText
+        v-model="filters.device_serial"
+        placeholder="搜索设备码"
+        class="admin-users__search"
+        @keyup.enter="applyFilters"
+      />
       <Select
         v-model="filters.oem_id"
         :options="oemOptions"