diff --git a/zh-cn/application-dev/device/stationary-guidelines.md b/zh-cn/application-dev/device/stationary-guidelines.md
index 190881fe356452c6c3cadb14b8aecbb6efe4fbd8..80b3f018ce0a83a0e62da1735f170c400453232f 100644
--- a/zh-cn/application-dev/device/stationary-guidelines.md
+++ b/zh-cn/application-dev/device/stationary-guidelines.md
@@ -47,6 +47,7 @@
 
    ```ts
    import stationary from '@ohos.stationary';
+   import { BusinessError } from '@ohos.base';
    let reportLatencyNs = 1000000000;
    try {
       stationary.on('still', stationary.ActivityEvent.ENTER, reportLatencyNs, (data) => {
@@ -62,6 +63,7 @@
 
    ```ts
    import stationary from '@ohos.stationary';
+   import { BusinessError } from '@ohos.base';
    try {
       stationary.once('still', (data) => {
          console.log('data='+ JSON.stringify(data));
@@ -76,6 +78,7 @@
 
    ```ts
    import stationary from '@ohos.stationary';
+   import { BusinessError } from '@ohos.base';
    try {
       stationary.off('still', stationary.ActivityEvent.ENTER, (data) => {
          console.log('data='+ JSON.stringify(data));