diff --git a/core/nstatus/check.go b/core/nstatus/check.go
new file mode 100644
index 0000000..5a5ef30
--- /dev/null
+++ b/core/nstatus/check.go
@@ -0,0 +1,24 @@
+package nstatus
+
+import (
+	"git.noahlan.cn/noahlan/ntool-biz/core/nstatus/code"
+	"git.noahlan.cn/noahlan/ntool-biz/core/nstatus/msg"
+)
+
+// IsNotFound 判断错误是否属于NotFound
+func IsNotFound(err error) bool {
+	nErr := ConvertErr(err)
+	if nErr == nil {
+		return false
+	}
+	return nErr.Code == code.StatusNotFound
+}
+
+// IsDatabaseErr 判断错误是否属于数据库错误
+func IsDatabaseErr(err error) bool {
+	nErr := ConvertErr(err)
+	if nErr == nil {
+		return false
+	}
+	return nErr.Msg == msg.DatabaseError
+}