diff --git a/ymt_v3/errors.go b/ymt_v3/errors.go
new file mode 100644
index 0000000..71571a0
--- /dev/null
+++ b/ymt_v3/errors.go
@@ -0,0 +1,17 @@
+package ymt_v3
+
+import "fmt"
+
+// APIError 表示API返回的错误信息
+type APIError struct {
+	Code    int32  `json:"code"`
+	Message string `json:"message"`
+	Reason  string `json:"reason,omitempty"`
+}
+
+func (e *APIError) Error() string {
+	if e.Reason != "" {
+		return fmt.Sprintf("code=%d, message=%s, reason=%s", e.Code, e.Message, e.Reason)
+	}
+	return fmt.Sprintf("code=%d, message=%s", e.Code, e.Message)
+}
\ No newline at end of file