diff --git a/internal/iplibrary/library_ip2region.go b/internal/iplibrary/library_ip2region.go
index a0c6918b..8dc9deb9 100644
--- a/internal/iplibrary/library_ip2region.go
+++ b/internal/iplibrary/library_ip2region.go
@@ -5,6 +5,7 @@ import (
 	"github.com/TeaOSLab/EdgeAPI/internal/errors"
 	"github.com/TeaOSLab/EdgeAPI/internal/remotelogs"
 	"github.com/lionsoul2014/ip2region/binding/golang/ip2region"
+	"net"
 	"strings"
 )
 
@@ -27,10 +28,13 @@ func (this *IP2RegionLibrary) Lookup(ip string) (*Result, error) {
 		return nil, errors.New("library has not been loaded")
 	}
 
-	// 暂不支持IPv6
+	// 只支持IPv4
 	if strings.Contains(ip, ":") {
 		return nil, nil
 	}
+	if net.ParseIP(ip) == nil {
+		return nil, nil
+	}
 
 	defer func() {
 		// 防止panic发生
diff --git a/internal/iplibrary/library_ip2region_test.go b/internal/iplibrary/library_ip2region_test.go
index fef27ef6..81df4e50 100644
--- a/internal/iplibrary/library_ip2region_test.go
+++ b/internal/iplibrary/library_ip2region_test.go
@@ -24,6 +24,29 @@ func TestIP2RegionLibrary_Lookup(t *testing.T) {
 	logs.PrintAsJSON(result, t)
 }
 
+func TestIP2RegionLibrary_Lookup_Valid_IP(t *testing.T) {
+	library := &IP2RegionLibrary{}
+	err := library.Load(Tea.Root + "/resources/ipdata/ip2region/ip2region.db")
+	if err != nil {
+		t.Fatal(err)
+	}
+	{
+		result, err := library.Lookup("114.240.223")
+		if err != nil {
+			t.Fatal(err)
+		}
+		logs.PrintAsJSON(result, t)
+	}
+	{
+		result, err := library.Lookup("abc")
+		if err != nil {
+			t.Fatal(err)
+		}
+		logs.PrintAsJSON(result, t)
+	}
+}
+
+
 func TestIP2RegionLibrary_Memory(t *testing.T) {
 	library := &IP2RegionLibrary{}
 	err := library.Load(Tea.Root + "/resources/ipdata/ip2region/ip2region.db")