diff --git a/config/config.yaml b/config/config.yaml
index bb0e909a5..87c14a60f 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -124,14 +124,19 @@ api:
 # Session token
 # Configuration for Tencent COS
 # Configuration for Aliyun OSS
+# apiURL is the address of the api, the access address of the app, use s3 must be configured
+# minio.endpoint can be configured as an intranet address,
+# minio.signEndpoint is minio public network address
+# minio.thumbnailApi is the address of the thumbnail service, the access address of the app
+# minio.thumbnailUseSignEndpoint whether the url parameter for generating thumbnails uses a signed address, the default is fine
 object:
   enable: "minio"
-  apiURL: http://127.0.0.1:10002
+  apiURL: "http://127.0.0.1:10002"
   minio:
     bucket: "openim"
-    endpoint: http://127.0.0.1:10005
-    accessKeyID: root
-    secretAccessKey: openIM123
+    endpoint: "http://127.0.0.1:10005"
+    accessKeyID: "root"
+    secretAccessKey: "openIM123"
     sessionToken: ""
     signEndpoint: "http://127.0.0.1:10005"
     thumbnailApi: "http://127.0.0.1:10003"
@@ -145,7 +150,7 @@ object:
     endpoint: "https://oss-cn-chengdu.aliyuncs.com"
     bucket: "demo-9999999"
     bucketURL: "https://demo-9999999.oss-cn-chengdu.aliyuncs.com"
-    accessKeyID: root
+    accessKeyID: ""
     accessKeySecret: ""
     sessionToken: ""