diff --git a/internal/stats/http_request_stat_manager.go b/internal/stats/http_request_stat_manager.go
index fefc1a7..2b51814 100644
--- a/internal/stats/http_request_stat_manager.go
+++ b/internal/stats/http_request_stat_manager.go
@@ -28,6 +28,7 @@ type StatItem struct {
 }
 
 var SharedHTTPRequestStatManager = NewHTTPRequestStatManager()
+var sharedUserAgentParser = NewUserAgentParser()
 
 // HTTPRequestStatManager HTTP请求相关的统计
 // 这里的统计是一个辅助统计，注意不要因为统计而影响服务工作性能
@@ -176,7 +177,6 @@ func (this *HTTPRequestStatManager) AddFirewallRuleGroupId(serverId int64, firew
 // Loop 单个循环
 func (this *HTTPRequestStatManager) Loop() error {
 	timeout := time.NewTimer(10 * time.Minute) // 执行的最大时间
-	userAgentParser := NewUserAgentParser()
 Loop:
 	for {
 		select {
@@ -222,7 +222,7 @@ Loop:
 			serverId := userAgentString[:atIndex]
 			userAgent := userAgentString[atIndex+1:]
 
-			var result = userAgentParser.Parse(userAgent)
+			var result = sharedUserAgentParser.Parse(userAgent)
 			var osInfo = result.os
 			if len(osInfo.Name) > 0 {
 				dotIndex := strings.Index(osInfo.Version, ".")
diff --git a/internal/stats/user_agent_parser_test.go b/internal/stats/user_agent_parser_test.go
index 2807f4a..f28e7bb 100644
--- a/internal/stats/user_agent_parser_test.go
+++ b/internal/stats/user_agent_parser_test.go
@@ -12,8 +12,10 @@ import (
 
 func TestUserAgentParser_Parse(t *testing.T) {
 	var parser = NewUserAgentParser()
-	t.Log(parser.Parse("Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36 Test/1"))
-	t.Log(parser.Parse("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"))
+	for i := 0; i < 4; i ++ {
+		t.Log(parser.Parse("Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36 Test/1"))
+		t.Log(parser.Parse("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36"))
+	}
 }
 
 func TestUserAgentParser_Parse_Unknown(t *testing.T) {