diff --git a/internal/iplibrary/library_ip2region.go b/internal/iplibrary/library_ip2region.go
index cba9715..8213948 100644
--- a/internal/iplibrary/library_ip2region.go
+++ b/internal/iplibrary/library_ip2region.go
@@ -5,6 +5,7 @@ import (
 	"github.com/TeaOSLab/EdgeNode/internal/errors"
 	"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
 	"github.com/lionsoul2014/ip2region/binding/golang/ip2region"
+	"net"
 	"strings"
 )
 
@@ -27,6 +28,9 @@ func (this *IP2RegionLibrary) Lookup(ip string) (*Result, error) {
 	if strings.Contains(ip, ":") {
 		return nil, nil
 	}
+	if net.ParseIP(ip) == nil {
+		return nil, nil
+	}
 
 	if this.db == nil {
 		return nil, errors.New("library has not been loaded")