diff --git a/actions/common/common.go b/actions/common/common.go
index efee25a..e837da7 100644
--- a/actions/common/common.go
+++ b/actions/common/common.go
@@ -55,7 +55,7 @@ func InitActionsCommonCache() {
 
 	maxPostIdCache = cache.NewSliceCache[uint64](getMaxPostId, vars.Conf.MaxPostIdCacheTime)
 
-	usersCache = cache.NewMapCacheByBatchFn[uint64, models.WpUsers](getUsers, time.Hour)
+	usersCache = cache.NewMapCacheByBatchFn[uint64, models.WpUsers](getUsers, vars.Conf.UserInfoCacheTime)
 	usersCache.SetCacheFunc(getUser)
 }
 
diff --git a/config.example.yaml b/config.example.yaml
index 006ca33..d8ba217 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -49,3 +49,5 @@ maxRequestNum: 500
 singleIpSearchNum: 10
 # 文档最大id缓存时间
 maxPostIdCacheTime: 1h
+# 用户信息缓存时间
+userInfoCacheTime: 24h
diff --git a/vars/config.go b/vars/config.go
index 9f0159c..2243ce4 100644
--- a/vars/config.go
+++ b/vars/config.go
@@ -29,6 +29,7 @@ type Config struct {
 	MaxRequestNum           int64           `yaml:"maxRequestNum"`
 	SingleIpSearchNum       int64           `yaml:"singleIpSearchNum"`
 	MaxPostIdCacheTime      time.Duration   `yaml:"maxPostIdCacheTime"`
+	UserInfoCacheTime       time.Duration   `yaml:"userInfoCacheTime"`
 }
 
 type Mysql struct {