diff --git a/internal/caches/manager.go b/internal/caches/manager.go
index de69ab6..d2d9a3a 100644
--- a/internal/caches/manager.go
+++ b/internal/caches/manager.go
@@ -25,6 +25,7 @@ func init() {
 type Manager struct {
 	// 全局配置
 	MaxDiskCapacity   *shared.SizeCapacity
+	DiskDir           string
 	MaxMemoryCapacity *shared.SizeCapacity
 
 	policyMap  map[int64]*serverconfigs.HTTPCachePolicy // policyId => []*Policy
@@ -49,6 +50,11 @@ func (this *Manager) UpdatePolicies(newPolicies []*serverconfigs.HTTPCachePolicy
 
 	newPolicyIds := []int64{}
 	for _, policy := range newPolicies {
+		// 使用节点单独的缓存目录
+		if len(this.DiskDir) > 0 {
+			policy.UpdateDiskDir(this.DiskDir)
+		}
+
 		newPolicyIds = append(newPolicyIds, policy.Id)
 	}
 
diff --git a/internal/nodes/node.go b/internal/nodes/node.go
index bbeec22..463fe18 100644
--- a/internal/nodes/node.go
+++ b/internal/nodes/node.go
@@ -796,6 +796,7 @@ func (this *Node) onReload(config *nodeconfigs.NodeConfig) {
 	// 缓存策略
 	caches.SharedManager.MaxDiskCapacity = config.MaxCacheDiskCapacity
 	caches.SharedManager.MaxMemoryCapacity = config.MaxCacheMemoryCapacity
+	caches.SharedManager.DiskDir = config.CacheDiskDir
 	if len(config.HTTPCachePolicies) > 0 {
 		caches.SharedManager.UpdatePolicies(config.HTTPCachePolicies)
 	} else {