diff --git a/zh-cn/application-dev/reference/apis/js-apis-enterprise-usbManager.md b/zh-cn/application-dev/reference/apis/js-apis-enterprise-usbManager.md
index a6bda1e10bd849684a306e975f6675c172e06186..93c2dbf07dcd6af07ca72d74434e9eb55370ee41 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-enterprise-usbManager.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-enterprise-usbManager.md
@@ -18,7 +18,7 @@ import usbManager from '@ohos.enterprise.usbManager'
 
 ## usbManager.setUsbPolicy
 
-setUsbPolicy(dmin: Want, usbPolicy: UsbPolicy, callback: AsyncCallback\<void>): void
+setUsbPolicy(admin: Want, usbPolicy: UsbPolicy, callback: AsyncCallback\<void>): void
 
 指定设备管理应用设置USB的读写策略。使用callback异步回调。