diff --git a/hrp/code/code.go b/hrp/code/code.go
index 6be8e124..bc8e273d 100644
--- a/hrp/code/code.go
+++ b/hrp/code/code.go
@@ -227,3 +227,16 @@ func GetErrorCode(err error) (errCode int) {
 	}
 	return
 }
+
+func GetErrorByCode(errCode int) (error) {
+	if errCode < 0 {
+		return nil
+	}
+	for key, value := range errorsMap {
+		if value == errCode {
+			return key
+		}
+	}
+	return nil
+}
+
diff --git a/hrp/code/code_test.go b/hrp/code/code_test.go
index bbf538bf..977612df 100644
--- a/hrp/code/code_test.go
+++ b/hrp/code/code_test.go
@@ -10,3 +10,9 @@ func TestGetErrorCode(t *testing.T) {
 	code := GetErrorCode(err)
 	fmt.Println(code)
 }
+
+func TestGetErrorByCode(t *testing.T) {
+	code := 0
+	err := GetErrorByCode(code)
+	fmt.Println("[TestGetErrorByCode]:err:",err)
+}