diff --git a/error.go b/error.go
index 872f3c2..da04afc 100644
--- a/error.go
+++ b/error.go
@@ -17,10 +17,14 @@ const (
 	SDKUnknownError Error = "未知错误"
 	// SDKInvalidCredential 错误码：40001
 	SDKInvalidCredential Error = "不合法的secret参数"
+	// SDKInvalidImageSize 错误码：40009
+	SDKInvalidImageSize Error = "无效的图片大小"
 	// SDKInvalidCorpID 错误码：40013
 	SDKInvalidCorpID Error = "无效的 CorpID"
 	// SDKAccessTokenInvalid 错误码：40014
 	SDKAccessTokenInvalid Error = "AccessToken 无效"
+	// SDKMediaIDExceedMinLength 错误码：40058
+	SDKMediaIDExceedMinLength Error = "media_id 小于最小长度 1"
 	// SDKAccessTokenMissing 错误码：41001
 	SDKAccessTokenMissing Error = "缺少AccessToken参数"
 	// SDKAccessTokenExpired 错误码：42001
@@ -51,6 +55,8 @@ func NewSDKErr(code int, msgList ...string) Error {
 		return SDKCacheUnavailable
 	case 40001:
 		return SDKInvalidCredential
+	case 40009:
+		return SDKInvalidImageSize
 	case 41001:
 		return SDKAccessTokenMissing
 	case 42001:
@@ -59,6 +65,8 @@ func NewSDKErr(code int, msgList ...string) Error {
 		return SDKInvalidCorpID
 	case 40014:
 		return SDKAccessTokenInvalid
+	case 40058:
+		return SDKMediaIDExceedMinLength
 	case 45009:
 		return SDKApiFreqOutOfLimit
 	case 48002: