diff --git a/g/database/gdb/gdb.go b/g/database/gdb/gdb.go
index 001564faf..adb1a6735 100644
--- a/g/database/gdb/gdb.go
+++ b/g/database/gdb/gdb.go
@@ -308,12 +308,14 @@ func (bs *dbBase) getSqlDb(master bool) (sqlDb *sql.DB, err error) {
 	if node.Charset == "" {
 		node.Charset = "utf8"
 	}
+	// 缓存连接对象(该对象其实是一个连接池对象)
 	v := bs.cache.GetOrSetFuncLock(node.String(), func() interface{} {
 		sqlDb, err = bs.db.Open(node)
 		if err != nil {
 			return nil
 		}
-
+		// 接口对象可能会覆盖这些连接参数，所以这里优先判断有误设置连接池属性。
+		// 若无设置则使用配置节点的连接池参数
 		if n := bs.maxIdleConnCount.Val(); n > 0 {
 			sqlDb.SetMaxIdleConns(n)
 		} else if node.MaxIdleConnCount > 0 {
@@ -336,6 +338,8 @@ func (bs *dbBase) getSqlDb(master bool) (sqlDb *sql.DB, err error) {
 	if v != nil && sqlDb == nil {
 		sqlDb = v.(*sql.DB)
 	}
+	// 是否开启调试模式
+	bs.SetDebug(node.Debug)
 	// 是否手动选择数据库
 	if v := bs.schema.Val(); v != "" {
 		sqlDb.Exec("USE " + v)
diff --git a/g/database/gdb/gdb_config.go b/g/database/gdb/gdb_config.go
index df9a02c89..c18992b94 100644
--- a/g/database/gdb/gdb_config.go
+++ b/g/database/gdb/gdb_config.go
@@ -33,6 +33,7 @@ type ConfigNode struct {
 	Name             string // 数据库名称
 	Type             string // 数据库类型：mysql, sqlite, mssql, pgsql, oracle
 	Role             string // (可选，默认为master)数据库的角色，用于主从操作分离，至少需要有一个master，参数值：master, slave
+	Debug            bool   // (可选)开启调试模式
 	Weight           int    // (可选)用于负载均衡的权重计算，当集群中只有一个节点时，权重没有任何意义
 	Charset          string // (可选，默认为 utf8)编码，默认为 utf8
 	LinkInfo         string // (可选)自定义链接信息，当该字段被设置值时，以上链接字段(Host,Port,User,Pass,Name)将失效(该字段是一个扩展功能)
@@ -132,8 +133,8 @@ func (node *ConfigNode) String() string {
 	if node.LinkInfo != "" {
 		return node.LinkInfo
 	}
-	return fmt.Sprintf(`%s@%s:%s,%s,%s,%s,%s,%d-%d-%d`, node.User, node.Host, node.Port,
-		node.Name, node.Type, node.Role, node.Charset,
+	return fmt.Sprintf(`%s@%s:%s,%s,%s,%s,%s,%v,%d-%d-%d`, node.User, node.Host, node.Port,
+		node.Name, node.Type, node.Role, node.Charset, node.Debug,
 		node.MaxIdleConnCount, node.MaxOpenConnCount, node.MaxConnLifetime,
 	)
 }
diff --git a/g/frame/gins/gins.go b/g/frame/gins/gins.go
index aa7380001..983b13c82 100644
--- a/g/frame/gins/gins.go
+++ b/g/frame/gins/gins.go
@@ -115,12 +115,15 @@ func Database(name ...string) gdb.DB {
 						if value, ok := nodeMap["role"]; ok {
 							node.Role = gconv.String(value)
 						}
-						if value, ok := nodeMap["charset"]; ok {
-							node.Charset = gconv.String(value)
+						if value, ok := nodeMap["debug"]; ok {
+							node.Debug = gconv.Bool(value)
 						}
 						if value, ok := nodeMap["weight"]; ok {
 							node.Weight = gconv.Int(value)
 						}
+						if value, ok := nodeMap["charset"]; ok {
+							node.Charset = gconv.String(value)
+						}
 						// Deprecated
 						if value, ok := nodeMap["linkinfo"]; ok {
 							node.LinkInfo = gconv.String(value)
diff --git a/geg/database/gdb/mysql/config.toml b/geg/database/gdb/mysql/config.toml
index 300ff3557..db81820fe 100644
--- a/geg/database/gdb/mysql/config.toml
+++ b/geg/database/gdb/mysql/config.toml
@@ -9,5 +9,6 @@
         name     = "test"
         type     = "mysql"
         role     = "master"
+        debug    = "true"
         weight   = "1"
         charset  = "utf8"
diff --git a/geg/database/gdb/mysql/gdb_debug.go b/geg/database/gdb/mysql/gdb_debug1.go
similarity index 94%
rename from geg/database/gdb/mysql/gdb_debug.go
rename to geg/database/gdb/mysql/gdb_debug1.go
index 8354514e2..6452d5eed 100644
--- a/geg/database/gdb/mysql/gdb_debug.go
+++ b/geg/database/gdb/mysql/gdb_debug1.go
@@ -24,8 +24,7 @@ func main() {
 		panic(err)
 	}
 	db.SetDebug(true)
-	db.Table("user").Limit(2).Delete()
-	return
+
 	glog.SetPath("/tmp")
 
 	// 执行3条SQL查询
diff --git a/geg/database/gdb/mysql/gdb_debug2.go b/geg/database/gdb/mysql/gdb_debug2.go
new file mode 100644
index 000000000..504e25e82
--- /dev/null
+++ b/geg/database/gdb/mysql/gdb_debug2.go
@@ -0,0 +1,17 @@
+package main
+
+import (
+	"github.com/gogf/gf/g"
+)
+
+func main() {
+	db := g.DB()
+	// 执行3条SQL查询
+	for i := 1; i <= 3; i++ {
+		db.Table("user").Where("id=?", i).One()
+	}
+	// 构造一条错误查询
+	db.Table("user").Where("no_such_field=?", "just_test").One()
+
+	db.Table("user").Data(g.Map{"name": "smith"}).Where("uid=?", 1).Save()
+}