diff --git a/config/config.yaml b/config/config.yaml
index 2135f2135..f31368e98 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -59,14 +59,14 @@ api:
   listenIP:                               #默认为0.0.0.0
 
 object:
-  enable: minio                           #使用minio
-  apiURL: http://127.0.0.1:10002/object/
+  enable: "minio"                           #使用minio
+  apiURL: "http://127.0.0.1:10002/object/"
   minio:
     bucket: "openim"                      #不建议修改
-    endpoint: http://127.0.0.1:10005      #minio对外服务的ip和端口，app要能访问此ip和端口
-    accessKeyID: root                     #ID
-    secretAccessKey: openIM123            #秘钥
-    sessionToken:             #token
+    endpoint: "http://127.0.0.1:10005"      #minio对外服务的ip和端口，app要能访问此ip和端口
+    accessKeyID: "root"                     #ID
+    secretAccessKey: "openIM123"            #秘钥
+    sessionToken: ""            #token
   cos: #tencent cos
     bucketURL: "https://temp-1252357374.cos.ap-chengdu.myqcloud.com"
     secretID: ""
diff --git a/pkg/common/config/config.go b/pkg/common/config/config.go
index c9dd2860a..75f7b7f54 100644
--- a/pkg/common/config/config.go
+++ b/pkg/common/config/config.go
@@ -110,7 +110,7 @@ type config struct {
 			SecretID     string `yaml:"secretID"`
 			SecretKey    string `yaml:"secretKey"`
 			SessionToken string `yaml:"sessionToken"`
-		} `yaml:"tencent"`
+		} `yaml:"cos"`
 		Oss struct {
 			Endpoint        string `yaml:"endpoint"`
 			Bucket          string `yaml:"bucket"`
@@ -118,7 +118,7 @@ type config struct {
 			AccessKeyID     string `yaml:"accessKeyID"`
 			AccessKeySecret string `yaml:"accessKeySecret"`
 			SessionToken    string `yaml:"sessionToken"`
-		} `yaml:"ali"`
+		} `yaml:"oss"`
 	} `yaml:"object"`
 
 	RpcPort struct {
diff --git a/pkg/common/db/s3/cos/cos.go b/pkg/common/db/s3/cos/cos.go
index 8536613be..ed4a48676 100644
--- a/pkg/common/db/s3/cos/cos.go
+++ b/pkg/common/db/s3/cos/cos.go
@@ -33,17 +33,23 @@ func NewCos() (s3.Interface, error) {
 			SessionToken: conf.SessionToken,
 		},
 	})
+	statObjectURL := u.String()
+	if statObjectURL != "" && statObjectURL[len(statObjectURL)-1] != '/' {
+		statObjectURL += "/"
+	}
 	return &Cos{
-		copyURL:    u.Host + "/",
-		client:     client,
-		credential: client.GetCredential(),
+		statObjectURL: statObjectURL,
+		copyURL:       u.Host + "/",
+		client:        client,
+		credential:    client.GetCredential(),
 	}, nil
 }
 
 type Cos struct {
-	copyURL    string
-	client     *cos.Client
-	credential *cos.Credential
+	statObjectURL string
+	copyURL       string
+	client        *cos.Client
+	credential    *cos.Credential
 }
 
 func (c *Cos) Engine() string {
@@ -59,6 +65,7 @@ func (c *Cos) PartLimit() *s3.PartLimit {
 }
 
 func (c *Cos) InitiateMultipartUpload(ctx context.Context, name string) (*s3.InitiateMultipartUploadResult, error) {
+	name = c.client.BaseURL.BucketURL.String() + name
 	result, _, err := c.client.Object.InitiateMultipartUpload(ctx, name, nil)
 	if err != nil {
 		return nil, err
@@ -166,7 +173,10 @@ func (c *Cos) DeleteObject(ctx context.Context, name string) error {
 }
 
 func (c *Cos) StatObject(ctx context.Context, name string) (*s3.ObjectInfo, error) {
-	info, err := c.client.Object.Head(ctx, name, nil)
+	if name != "" && name[0] == '/' {
+		name = name[1:]
+	}
+	info, err := c.client.Object.Head(ctx, c.statObjectURL+name, nil)
 	if err != nil {
 		return nil, err
 	}