diff --git a/site/docs/doc/mbean.md b/site/docs/doc/mbean.md
index dbde4a9f8..6e2796cc0 100644
--- a/site/docs/doc/mbean.md
+++ b/site/docs/doc/mbean.md
@@ -66,3 +66,9 @@ mbean -E java.lang:type=Threading PeakThreadCount|ThreadCount|DaemonThreadCount
 ```bash
 mbean -i 1000 java.lang:type=Threading *Count
 ```
+
+实时监控使用`-i`，使用`-n`命令执行命令的次数（默认为100次）：
+
+```bash
+mbean -i 1000 -n 50 java.lang:type=Threading *Count
+```
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