diff --git a/internal/db/models/node_dao.go b/internal/db/models/node_dao.go
index 45298c0a..18c0ac55 100644
--- a/internal/db/models/node_dao.go
+++ b/internal/db/models/node_dao.go
@@ -1146,6 +1146,7 @@ func (this *NodeDAO) ComposeNodeConfig(tx *dbs.Tx, nodeId int64, cacheMap *utils
 	}
 
 	config.CacheDiskDir = node.CacheDiskDir
+	config.CacheDiskSubDirs = node.DecodeCacheDiskSubDirs()
 
 	// TOA
 	toaConfig, err := SharedNodeClusterDAO.FindClusterTOAConfig(tx, primaryClusterId, cacheMap)
@@ -1621,7 +1622,7 @@ func (this *NodeDAO) UpdateNodeSystem(tx *dbs.Tx, nodeId int64, maxCPU int32) er
 }
 
 // UpdateNodeCache 设置缓存相关
-func (this *NodeDAO) UpdateNodeCache(tx *dbs.Tx, nodeId int64, maxCacheDiskCapacityJSON []byte, maxCacheMemoryCapacityJSON []byte, cacheDiskDir string) error {
+func (this *NodeDAO) UpdateNodeCache(tx *dbs.Tx, nodeId int64, maxCacheDiskCapacityJSON []byte, maxCacheMemoryCapacityJSON []byte, cacheDiskDir string, cacheDiskSubDirs []*serverconfigs.CacheDir) error {
 	if nodeId <= 0 {
 		return errors.New("invalid nodeId")
 	}
@@ -1634,7 +1635,17 @@ func (this *NodeDAO) UpdateNodeCache(tx *dbs.Tx, nodeId int64, maxCacheDiskCapac
 		op.MaxCacheMemoryCapacity = maxCacheMemoryCapacityJSON
 	}
 	op.CacheDiskDir = cacheDiskDir
-	err := this.Save(tx, op)
+
+	if cacheDiskSubDirs == nil {
+		cacheDiskSubDirs = []*serverconfigs.CacheDir{}
+	}
+	cacheDiskSubDirsJSON, err := json.Marshal(cacheDiskSubDirs)
+	if err != nil {
+		return err
+	}
+	op.CacheDiskSubDirs = cacheDiskSubDirsJSON
+
+	err = this.Save(tx, op)
 	if err != nil {
 		return err
 	}
diff --git a/internal/db/models/node_model.go b/internal/db/models/node_model.go
index 1f313bf1..c1650cee 100644
--- a/internal/db/models/node_model.go
+++ b/internal/db/models/node_model.go
@@ -38,7 +38,8 @@ type Node struct {
 	DnsRoutes              dbs.JSON `field:"dnsRoutes"`              // DNS线路设置
 	MaxCacheDiskCapacity   dbs.JSON `field:"maxCacheDiskCapacity"`   // 硬盘缓存容量
 	MaxCacheMemoryCapacity dbs.JSON `field:"maxCacheMemoryCapacity"` // 内存缓存容量
-	CacheDiskDir           string   `field:"cacheDiskDir"`           // 缓存目录
+	CacheDiskDir           string   `field:"cacheDiskDir"`           // 主缓存目录
+	CacheDiskSubDirs       dbs.JSON `field:"cacheDiskSubDirs"`       // 其他缓存目录
 	DnsResolver            dbs.JSON `field:"dnsResolver"`            // DNS解析器
 	EnableIPLists          bool     `field:"enableIPLists"`          // 启用IP名单
 }
@@ -78,7 +79,8 @@ type NodeOperator struct {
 	DnsRoutes              any // DNS线路设置
 	MaxCacheDiskCapacity   any // 硬盘缓存容量
 	MaxCacheMemoryCapacity any // 内存缓存容量
-	CacheDiskDir           any // 缓存目录
+	CacheDiskDir           any // 主缓存目录
+	CacheDiskSubDirs       any // 其他缓存目录
 	DnsResolver            any // DNS解析器
 	EnableIPLists          any // 启用IP名单
 }
diff --git a/internal/db/models/node_model_ext.go b/internal/db/models/node_model_ext.go
index 136aa534..0d464552 100644
--- a/internal/db/models/node_model_ext.go
+++ b/internal/db/models/node_model_ext.go
@@ -2,7 +2,9 @@ package models
 
 import (
 	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/remotelogs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/ddosconfigs"
 	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
 	"sort"
@@ -181,3 +183,16 @@ func (this *Node) DecodeLnAddrs() []string {
 	}
 	return result
 }
+
+func (this *Node) DecodeCacheDiskSubDirs() []*serverconfigs.CacheDir {
+	if IsNull(this.CacheDiskSubDirs) {
+		return nil
+	}
+
+	var result = []*serverconfigs.CacheDir{}
+	err := json.Unmarshal(this.CacheDiskSubDirs, &result)
+	if err != nil {
+		remotelogs.Error("Node.DecodeCacheDiskSubDirs", err.Error())
+	}
+	return result
+}
diff --git a/internal/rpc/services/service_node.go b/internal/rpc/services/service_node.go
index d0ca26cc..ddf1ba95 100644
--- a/internal/rpc/services/service_node.go
+++ b/internal/rpc/services/service_node.go
@@ -673,6 +673,7 @@ func (this *NodeService) FindEnabledNode(ctx context.Context, req *pb.FindEnable
 		MaxCacheDiskCapacity:   pbMaxCacheDiskCapacity,
 		MaxCacheMemoryCapacity: pbMaxCacheMemoryCapacity,
 		CacheDiskDir:           node.CacheDiskDir,
+		CacheDiskSubDirsJSON:   node.CacheDiskSubDirs,
 		Level:                  int32(node.Level),
 		LnAddrs:                node.DecodeLnAddrs(),
 		DnsRoutes:              pbRoutes,
@@ -1708,7 +1709,16 @@ func (this *NodeService) UpdateNodeCache(ctx context.Context, req *pb.UpdateNode
 		}
 	}
 
-	err = models.SharedNodeDAO.UpdateNodeCache(tx, req.NodeId, maxCacheDiskCapacityJSON, maxCacheMemoryCapacityJSON, req.CacheDiskDir)
+	// cache sub dirs
+	var cacheSubDirs = []*serverconfigs.CacheDir{}
+	if len(req.CacheDiskSubDirsJSON) > 0 {
+		err = json.Unmarshal(req.CacheDiskSubDirsJSON, &cacheSubDirs)
+		if err != nil {
+			return nil, errors.New("decode 'cacheDiskSubDirsJSON' failed: " + err.Error())
+		}
+	}
+
+	err = models.SharedNodeDAO.UpdateNodeCache(tx, req.NodeId, maxCacheDiskCapacityJSON, maxCacheMemoryCapacityJSON, req.CacheDiskDir, cacheSubDirs)
 	if err != nil {
 		return nil, err
 	}