diff --git a/express_tool/ali_cloud_client.go b/express_tool/ali_cloud_client.go
index fe1438f..6ac3e2b 100644
--- a/express_tool/ali_cloud_client.go
+++ b/express_tool/ali_cloud_client.go
@@ -97,9 +97,9 @@ func (a *AliCloudExpressClient) Set(cache ICacheAdapter) {
 	a.cache = cache
 }
 
-func (a *AliCloudExpressClient) GetLogisticsInfoFormCache(ctx context.Context, mobile, number string, opt ...time.Duration) (res *ExpressRes, err error) {
+func (a *AliCloudExpressClient) GetLogisticsInfoFormCache(ctx context.Context, mobile, prefix, number string, opt ...time.Duration) (res *ExpressRes, err error) {
 	if a.cache != nil {
-		res, err = a.cache.Get(ctx, a.numberKey(number))
+		res, err = a.cache.Get(ctx, a.numberKey(prefix, number))
 		if err != nil {
 			return nil, errors.Wrapf(err, "获取缓存失败, number:%s", number)
 		}
@@ -119,7 +119,7 @@ func (a *AliCloudExpressClient) GetLogisticsInfoFormCache(ctx context.Context, m
 	}
 
 	if len(opt) > 0 {
-		err = a.cache.Set(ctx, a.numberKey(number), string(infoJson), opt[0])
+		err = a.cache.Set(ctx, a.numberKey(prefix, number), string(infoJson), opt[0])
 		if err != nil {
 			return nil, errors.Wrapf(err, "缓存物流信息失败, number:%s", number)
 		}
@@ -127,9 +127,17 @@ func (a *AliCloudExpressClient) GetLogisticsInfoFormCache(ctx context.Context, m
 	return
 }
 
+func (a *AliCloudExpressClient) DeleteLogisticsInfoCache(ctx context.Context, prefix, number string) (err error) {
+	if a.cache == nil {
+		return errors.New("缓存不能为空")
+	}
+	err = a.cache.Del(ctx, a.numberKey(prefix, number))
+	return err
+}
+
 // ipKey 生成Redis key
-func (a *AliCloudExpressClient) numberKey(number string) string {
-	return fmt.Sprintf("app:number:%s", number)
+func (a *AliCloudExpressClient) numberKey(prefix, number string) string {
+	return fmt.Sprintf("%s:number:%s", prefix, number)
 }
 
 type ExpressRes struct {
diff --git a/express_tool/ali_cloud_client_test.go b/express_tool/ali_cloud_client_test.go
index 688b7c2..d4ff0c3 100644
--- a/express_tool/ali_cloud_client_test.go
+++ b/express_tool/ali_cloud_client_test.go
@@ -65,14 +65,36 @@ func TestAliCloudExpressClient_GetLogisticsInfoFormCache(t *testing.T) {
 		Host:    "",
 		cache:   cache,
 	}
-	gotRes, err := a.GetLogisticsInfoFormCache(context.Background(), "", "", time.Minute)
+	gotRes, err := a.GetLogisticsInfoFormCache(context.Background(), "", "", "", time.Minute)
 	log.Println(gotRes, err)
 }
 
+func TestAliCloudExpressClient_DeleteLogisticsInfoCache(t *testing.T) {
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     "",
+		Password: "",
+		DB:       1,
+	})
+
+	// 创建缓存实例
+	cache := NewRedisCache(rdb)
+	a := &AliCloudExpressClient{
+		AppCode: "",
+		Host:    "",
+		cache:   cache,
+	}
+	err := a.DeleteLogisticsInfoCache(context.Background(), "", "")
+	log.Println(err)
+}
+
 type RedisCache struct {
 	client *redis.Client
 }
 
+func (r *RedisCache) Del(ctx context.Context, number string) error {
+	return r.client.Del(ctx, number).Err()
+}
+
 func NewRedisCache(client *redis.Client) *RedisCache {
 	return &RedisCache{client: client}
 }
diff --git a/express_tool/express_cache.go b/express_tool/express_cache.go
index 61e8e1c..18d3530 100644
--- a/express_tool/express_cache.go
+++ b/express_tool/express_cache.go
@@ -8,4 +8,5 @@ import (
 type ICacheAdapter interface {
 	Set(ctx context.Context, number string, res string, ttl time.Duration) error
 	Get(ctx context.Context, number string) (*ExpressRes, error)
+	Del(ctx context.Context, number string) error
 }