diff --git a/auto-check/auto-check.yaml b/auto-check/auto-check.yaml
index c3b1ebe..47c1cb6 100644
--- a/auto-check/auto-check.yaml
+++ b/auto-check/auto-check.yaml
@@ -5,7 +5,7 @@
 scan:
   cidr: "10.0.3.0/24"
   timeout: 3s
-  concurrency: 30
+  concurrency: 10
 
 # --- SSH 认证 ---
 ssh:
diff --git a/auto-check/pkg/config/config.go b/auto-check/pkg/config/config.go
index a52540f..b91b7f8 100644
--- a/auto-check/pkg/config/config.go
+++ b/auto-check/pkg/config/config.go
@@ -76,7 +76,7 @@ func Default() *Config {
 		Scan: ScanConfig{
 			CIDR:        "192.168.1.0/24",
 			Timeout:     3 * time.Second,
-			Concurrency: 30,
+			Concurrency: 10,
 		},
 		SSH: SSHConfig{
 			User: "root",