diff --git a/img.png b/img.png
deleted file mode 100644
index e790cabbf..000000000
Binary files a/img.png and /dev/null differ
diff --git a/img_1.png b/img_1.png
deleted file mode 100644
index 0e2e34c40..000000000
Binary files a/img_1.png and /dev/null differ
diff --git a/img_2.png b/img_2.png
deleted file mode 100644
index dc0d58699..000000000
Binary files a/img_2.png and /dev/null differ
diff --git a/img_3.png b/img_3.png
deleted file mode 100644
index 501fe8770..000000000
Binary files a/img_3.png and /dev/null differ
diff --git a/prometheus.md b/prometheus.md
deleted file mode 100644
index 2987ee211..000000000
--- a/prometheus.md
+++ /dev/null
@@ -1,14 +0,0 @@
-
-## prometheus 使用
-
-通过docker-compose安装完Prometheus，node_exporter和grafana,默认grafana的对外端口号是3000，
-打开grafana，
-默认账户密码是admin:admin，
-然后配置grafana的Prometheus数据源，在如下界面配置，
-![img.png](img.png)
-![img_1.png](img_1.png)
-注意ip地址和端口号是服务器局域网ip和Prometheus端口，比如172.29.166.17:19090。
-然后在如下页面导入dashboard，dashboard的yaml在config文件中,分别为promethues-dashboard.yaml,node-exporter-dashboard.yaml，
-表示openimserver应用服务dashboard和node-exporterdashboard
-![img_2.png](img_2.png)
-![img_3.png](img_3.png)
\ No newline at end of file