diff --git a/pkg/errs/coderr.go b/pkg/errs/coderr.go
new file mode 100644
index 000000000..98ee9a5ca
--- /dev/null
+++ b/pkg/errs/coderr.go
@@ -0,0 +1,80 @@
+package errs
+
+import (
+	"Open_IM/pkg/utils"
+	"fmt"
+	"github.com/pkg/errors"
+	"strings"
+)
+
+type Code interface {
+	Code() int
+	Msg() string
+}
+
+type Coderr interface {
+	Code
+	Detail() string
+	WithDetail(string) Coderr
+	Warp(...string) error
+	error
+}
+
+func NewCodeError(code int, msg string) Coderr {
+	return &errInfo{
+		code: code,
+		msg:  msg,
+	}
+}
+
+type errInfo struct {
+	code   int
+	msg    string
+	detail string
+}
+
+func (e *errInfo) WithDetail(s string) Coderr {
+	if e.detail == "" {
+		e.detail = s
+	} else {
+		e.detail = s + ", " + e.detail
+	}
+	return e
+}
+
+func (e *errInfo) Code() int {
+	return e.code
+}
+
+func (e *errInfo) Msg() string {
+	return e.msg
+}
+
+func (e *errInfo) Detail() string {
+	return e.detail
+}
+
+func (e *errInfo) Warp(w ...string) error {
+	return errors.Wrap(e, strings.Join(w, ", "))
+}
+
+func (e *errInfo) Error() string {
+	return fmt.Sprintf("[%d]%s", e.code, e.msg)
+}
+
+func Unwrap(err error) error {
+	return utils.Unwrap(err)
+}
+
+func GetCode(err error) Code {
+	if err == nil {
+		return NewCodeError(UnknownCode, "nil")
+	}
+	if code, ok := Unwrap(err).(Code); ok {
+		if code.Code() == 0 {
+			return NewCodeError(UnknownCode, "code == 0")
+		}
+		return code
+	}
+	return NewCodeError(UnknownCode, "unknown code")
+}
diff --git a/pkg/errs/define.go b/pkg/errs/define.go
new file mode 100644
index 000000000..d31d26f1f
--- /dev/null
+++ b/pkg/errs/define.go
@@ -0,0 +1,4 @@
+package errs
+
+// UnknownCode 没有解析到code或解析的code=0
+const UnknownCode = 1000