diff --git a/internal/const/const_community.go b/internal/const/const_community.go
new file mode 100644
index 00000000..71b69ecc
--- /dev/null
+++ b/internal/const/const_community.go
@@ -0,0 +1,9 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+//go:build !plus
+
+package teaconst
+
+const (
+	// DefaultMaxNodes 节点数限制
+	DefaultMaxNodes int32 = 50
+)
diff --git a/internal/db/models/node_dao_limit.go b/internal/db/models/node_dao_limit.go
index f801bd75..3ba598ab 100644
--- a/internal/db/models/node_dao_limit.go
+++ b/internal/db/models/node_dao_limit.go
@@ -4,7 +4,10 @@
 package models
 
 import (
+	"errors"
+	teaconst "github.com/TeaOSLab/EdgeAPI/internal/const"
 	"github.com/iwind/TeaGo/dbs"
+	"github.com/iwind/TeaGo/types"
 )
 
 func (this *NodeDAO) CountAllAuthorityNodes(tx *dbs.Tx) (int64, error) {
@@ -15,5 +18,18 @@ func (this *NodeDAO) CountAllAuthorityNodes(tx *dbs.Tx) (int64, error) {
 }
 
 func (this *NodeDAO) CheckNodesLimit(tx *dbs.Tx) error {
+	var maxNodes = teaconst.DefaultMaxNodes
+
+	// 检查节点数量
+	if maxNodes > 0 {
+		count, err := this.CountAllAuthorityNodes(tx)
+		if err != nil {
+			return err
+		}
+		if count >= int64(maxNodes) {
+			return errors.New("超出最大节点数限制：" + types.String(maxNodes) + "，当前已用：" + types.String(count) + "，请自行修改源码修改此限制（EdgeAPI/internal/const/const_community.go） 或者 购买商业版本授权。")
+		}
+	}
+
 	return nil
 }