diff --git a/actions/changes.go b/actions/changes.go
new file mode 100644
index 0000000..bcdcf54
--- /dev/null
+++ b/actions/changes.go
@@ -0,0 +1,24 @@
+package actions
+
+import (
+	"zzman/model"
+
+	"gorm.io/gorm"
+)
+
+func RecordChange(tx *gorm.DB, changes []model.Change) error {
+	if len(changes) == 0 {
+		return nil
+	}
+
+	batchSize := 1000
+	for i := 0; i < len(changes); i += batchSize {
+		end := min(i+batchSize, len(changes))
+		batch := changes[i:end]
+		err := tx.Create(&batch).Error
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
diff --git a/actions/edges.go b/actions/edges.go
index a3016e7..937d9a9 100644
--- a/actions/edges.go
+++ b/actions/edges.go
@@ -42,6 +42,7 @@ func SaveEdges(tx *gorm.DB, edges []model.Edge) error {
 			Columns:   []clause.Column{{Name: "macaddr"}},
 			UpdateAll: true,
 		}).Create(&batch).Error
+
 		if err != nil {
 			return fmt.Errorf("failed to save edges batch %d-%d: %w", i, end-1, err)
 		}
diff --git a/actions/sync.go b/actions/sync.go
index 351cb46..8f62b0b 100644
--- a/actions/sync.go
+++ b/actions/sync.go
@@ -25,7 +25,7 @@ func Sync() (err error) {
 
 	// 获取所有城市的节点数据
 	for i, city := range cities {
-		slog.Info(fmt.Sprintf("正在同步城市，城市：%s，哈希：%s", city.Name, city.Hash))
+		slog.Debug(fmt.Sprintf("正在同步城市，城市：%s，哈希：%s", city.Name, city.Hash))
 
 		// 新节点信息
 		resp, err := jd.EdgeDevice(jd.EdgeDeviceReq{
@@ -37,7 +37,7 @@ func Sync() (err error) {
 			return fmt.Errorf("获取城市 %s:%s 的边缘设备失败: %w", city.Name, city.Hash, err)
 		}
 		var newEdges = resp.Edges
-		slog.Info(fmt.Sprintf("获取节点数据完成，城市：%s，节点数：%d", city.Name, len(newEdges)))
+		slog.Debug(fmt.Sprintf("获取节点数据完成，城市：%s，节点数：%d", city.Name, len(newEdges)))
 
 		err = model.DB.Transaction(func(tx *gorm.DB) error {
 			// 旧节点信息
diff --git a/actions/update.go b/actions/update.go
index be804cb..7c28771 100644
--- a/actions/update.go
+++ b/actions/update.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"log/slog"
 	"strconv"
+	"time"
 	"zzman/clients/jd"
 	"zzman/model"
 	u "zzman/util"
@@ -29,6 +30,8 @@ func Update(args ...UpdateArgs) error {
 }
 
 func update(tx *gorm.DB, arg UpdateArgs) error {
+	var now = time.Now()
+
 	gateways, err := FindGateways(tx)
 	if err != nil {
 		return fmt.Errorf("获取所有网关失败：%w", err)
@@ -110,6 +113,7 @@ func update(tx *gorm.DB, arg UpdateArgs) error {
 		// 更新网关配置
 		var configs2Create []model.Config
 		var configs2Update []model.ConfigUpdate
+		var changes []model.Change
 
 		for iGateway, gateway := range gateways2Update {
 
@@ -125,6 +129,13 @@ func update(tx *gorm.DB, arg UpdateArgs) error {
 					IsChange: u.P(0),
 				})
 
+				changes = append(changes, model.Change{
+					Time:    now,
+					Gateway: gateway.Macaddr,
+					OldEdge: oldConfig.Macaddr,
+					NewEdge: newConfig.Macaddr,
+				})
+
 				newConfigs[gateway][iCity] = ConfigInfo{
 					Type: 1, // 更新
 					Item: jd.EdgeInfo{
@@ -146,6 +157,13 @@ func update(tx *gorm.DB, arg UpdateArgs) error {
 					InnerIp:    fmt.Sprintf("172.16.%d.%d", gateway.Id, iCity+2),
 				})
 
+				changes = append(changes, model.Change{
+					Time:    now,
+					Gateway: gateway.Macaddr,
+					OldEdge: "",
+					NewEdge: newConfig.Macaddr,
+				})
+
 				newConfigs[gateway][iCity] = ConfigInfo{
 					Type: 2, // 新增
 					Item: jd.EdgeInfo{
@@ -168,6 +186,10 @@ func update(tx *gorm.DB, arg UpdateArgs) error {
 		if err != nil {
 			return fmt.Errorf("更新城市 %s 的偏移量失败：%w", city.Name, err)
 		}
+		err = RecordChange(tx, changes)
+		if err != nil {
+			return fmt.Errorf("记录变更失败：%w", err)
+		}
 	}
 
 	// 提交所有网关配置到云端
diff --git a/model/change.go b/model/change.go
new file mode 100644
index 0000000..7b94c6b
--- /dev/null
+++ b/model/change.go
@@ -0,0 +1,17 @@
+package model
+
+import "time"
+
+type Change struct {
+	Id      int       `gorm:"column:id;primaryKey"`
+	Time    time.Time `gorm:"column:time"`
+	Gateway string    `gorm:"column:macaddr"`
+	OldEdge string    `gorm:"column:edge_old"`
+	NewEdge string    `gorm:"column:edge_new"`
+	Network string    `gorm:"column:network"`
+	Info    string    `gorm:"column:info"`
+}
+
+func (Change) TableName() string {
+	return "change"
+}