diff --git a/pkg/filesystem/driver/cos/handler.go b/pkg/filesystem/driver/cos/handler.go
index 50b500c56e..709acef5a2 100644
--- a/pkg/filesystem/driver/cos/handler.go
+++ b/pkg/filesystem/driver/cos/handler.go
@@ -148,9 +148,9 @@ func (handler Driver) CORS() error {
 }
 
 // Get 获取文件
-func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
+func (handler Driver) Get(ctx context.Context, objectPath string) (response.RSCloser, error) {
 	// 获取文件源地址
-	downloadURL, err := handler.Source(ctx, path, int64(model.GetIntSetting("preview_timeout", 60)), false, 0)
+	downloadURL, err := handler.Source(ctx, objectPath, int64(model.GetIntSetting("preview_timeout", 60)), false, 0)
 	if err != nil {
 		return nil, err
 	}
@@ -263,7 +263,7 @@ func (handler Driver) Thumb(ctx context.Context, file *model.File) (*response.Co
 }
 
 // Source 获取外链URL
-func (handler Driver) Source(ctx context.Context, path string, ttl int64, isDownload bool, speed int) (string, error) {
+func (handler Driver) Source(ctx context.Context, objectPath string, ttl int64, isDownload bool, speed int) (string, error) {
 	// 尝试从上下文获取文件名
 	fileName := ""
 	if file, ok := ctx.Value(fsctx.FileModelCtx).(model.File); ok {
@@ -285,10 +285,10 @@ func (handler Driver) Source(ctx context.Context, path string, ttl int64, isDown
 		options.ContentDescription = "attachment; filename=\"" + url.PathEscape(fileName) + "\""
 	}
 
-	return handler.signSourceURL(ctx, path, ttl, &options)
+	return handler.signSourceURL(ctx, objectPath, ttl, &options)
 }
 
-func (handler Driver) signSourceURL(ctx context.Context, path string, ttl int64, options *urlOption) (string, error) {
+func (handler Driver) signSourceURL(ctx context.Context, objectPath string, ttl int64, options *urlOption) (string, error) {
 	cdnURL, err := url.Parse(handler.Policy.BaseURL)
 	if err != nil {
 		return "", err
@@ -296,7 +296,7 @@ func (handler Driver) signSourceURL(ctx context.Context, path string, ttl int64,
 
 	// 公有空间不需要签名
 	if !handler.Policy.IsPrivate {
-		file, err := url.Parse(path)
+		file, err := url.Parse(objectPath)
 		if err != nil {
 			return "", err
 		}
@@ -314,7 +314,7 @@ func (handler Driver) signSourceURL(ctx context.Context, path string, ttl int64,
 		return sourceURL.String(), nil
 	}
 
-	presignedURL, err := handler.Client.Object.GetPresignedURL(ctx, http.MethodGet, path,
+	presignedURL, err := handler.Client.Object.GetPresignedURL(ctx, http.MethodGet, objectPath,
 		handler.Policy.AccessKey, handler.Policy.SecretKey, time.Duration(ttl)*time.Second, options)
 	if err != nil {
 		return "", err
@@ -324,6 +324,10 @@ func (handler Driver) signSourceURL(ctx context.Context, path string, ttl int64,
 	presignedURL.Host = cdnURL.Host
 	presignedURL.Scheme = cdnURL.Scheme
 
+	// 支持代理域名使用子目录
+	// Support sub-directories for proxy domain
+	presignedURL.Path = path.Join(cdnURL.Path, presignedURL.Path)
+
 	return presignedURL.String(), nil
 }
 
@@ -374,8 +378,8 @@ func (handler Driver) CancelToken(ctx context.Context, uploadSession *serializer
 }
 
 // Meta 获取文件信息
-func (handler Driver) Meta(ctx context.Context, path string) (*MetaData, error) {
-	res, err := handler.Client.Object.Head(ctx, path, &cossdk.ObjectHeadOptions{})
+func (handler Driver) Meta(ctx context.Context, objectPath string) (*MetaData, error) {
+	res, err := handler.Client.Object.Head(ctx, objectPath, &cossdk.ObjectHeadOptions{})
 	if err != nil {
 		return nil, err
 	}
diff --git a/pkg/filesystem/driver/local/handler.go b/pkg/filesystem/driver/local/handler.go
index 85ba1af588..ef8eab8994 100644
--- a/pkg/filesystem/driver/local/handler.go
+++ b/pkg/filesystem/driver/local/handler.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"net/url"
 	"os"
+	"path"
 	"path/filepath"
 
 	model "github.com/cloudreve/Cloudreve/v3/models"
@@ -76,9 +77,9 @@ func (handler Driver) List(ctx context.Context, path string, recursive bool) ([]
 }
 
 // Get 获取文件内容
-func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
+func (handler Driver) Get(ctx context.Context, objectPath string) (response.RSCloser, error) {
 	// 打开文件
-	file, err := os.Open(util.RelativePath(path))
+	file, err := os.Open(util.RelativePath(objectPath))
 	if err != nil {
 		util.Log().Debug("Failed to open file: %s", err)
 		return nil, err
@@ -219,7 +220,7 @@ func (handler Driver) Thumb(ctx context.Context, file *model.File) (*response.Co
 }
 
 // Source 获取外链URL
-func (handler Driver) Source(ctx context.Context, path string, ttl int64, isDownload bool, speed int) (string, error) {
+func (handler Driver) Source(ctx context.Context, objectPath string, ttl int64, isDownload bool, speed int) (string, error) {
 	file, ok := ctx.Value(fsctx.FileModelCtx).(model.File)
 	if !ok {
 		return "", errors.New("failed to read file model context")
@@ -268,7 +269,11 @@ func (handler Driver) Source(ctx context.Context, path string, ttl int64, isDown
 
 	finalURL := signedURI.String()
 	if baseURL != nil {
-		finalURL = baseURL.ResolveReference(signedURI).String()
+		// 支持代理域名使用子目录
+		// Support sub-directories for proxy domain
+		baseURL.Path = path.Join(baseURL.Path, signedURI.Path)
+		baseURL.RawQuery = signedURI.RawQuery
+		finalURL = baseURL.String()
 	}
 
 	return finalURL, nil
diff --git a/pkg/filesystem/driver/onedrive/handler.go b/pkg/filesystem/driver/onedrive/handler.go
index 149fdba8cc..df613dd3ca 100644
--- a/pkg/filesystem/driver/onedrive/handler.go
+++ b/pkg/filesystem/driver/onedrive/handler.go
@@ -86,11 +86,11 @@ func (handler Driver) List(ctx context.Context, base string, recursive bool) ([]
 }
 
 // Get 获取文件
-func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
+func (handler Driver) Get(ctx context.Context, objectPath string) (response.RSCloser, error) {
 	// 获取文件源地址
 	downloadURL, err := handler.Source(
 		ctx,
-		path,
+		objectPath,
 		60,
 		false,
 		0,
@@ -162,12 +162,12 @@ func (handler Driver) Thumb(ctx context.Context, file *model.File) (*response.Co
 // Source 获取外链URL
 func (handler Driver) Source(
 	ctx context.Context,
-	path string,
+	objectPath string,
 	ttl int64,
 	isDownload bool,
 	speed int,
 ) (string, error) {
-	cacheKey := fmt.Sprintf("onedrive_source_%d_%s", handler.Policy.ID, path)
+	cacheKey := fmt.Sprintf("onedrive_source_%d_%s", handler.Policy.ID, objectPath)
 	if file, ok := ctx.Value(fsctx.FileModelCtx).(model.File); ok {
 		cacheKey = fmt.Sprintf("onedrive_source_file_%d_%d", file.UpdatedAt.Unix(), file.ID)
 	}
@@ -178,7 +178,7 @@ func (handler Driver) Source(
 	}
 
 	// 缓存不存在，重新获取
-	res, err := handler.Client.Meta(ctx, "", path)
+	res, err := handler.Client.Meta(ctx, "", objectPath)
 	if err == nil {
 		// 写入新的缓存
 		cache.Set(
@@ -206,6 +206,11 @@ func (handler Driver) replaceSourceHost(origin string) (string, error) {
 		// 替换反代地址
 		source.Scheme = cdn.Scheme
 		source.Host = cdn.Host
+
+		// 支持代理域名使用子目录
+		// Support sub-directories for proxy domain
+		source.Path = path.Join(cdn.Path, source.Path)
+
 		return source.String(), nil
 	}
 
diff --git a/pkg/filesystem/driver/oss/handler.go b/pkg/filesystem/driver/oss/handler.go
index 2ae50a375e..5c602aca9d 100644
--- a/pkg/filesystem/driver/oss/handler.go
+++ b/pkg/filesystem/driver/oss/handler.go
@@ -186,7 +186,7 @@ func (handler *Driver) List(ctx context.Context, base string, recursive bool) ([
 }
 
 // Get 获取文件
-func (handler *Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
+func (handler *Driver) Get(ctx context.Context, objectPath string) (response.RSCloser, error) {
 	// 通过VersionID禁止缓存
 	ctx = context.WithValue(ctx, VersionID, time.Now().UnixNano())
 
@@ -194,7 +194,7 @@ func (handler *Driver) Get(ctx context.Context, path string) (response.RSCloser,
 	ctx = context.WithValue(ctx, fsctx.ForceUsePublicEndpointCtx, false)
 
 	// 获取文件源地址
-	downloadURL, err := handler.Source(ctx, path, int64(model.GetIntSetting("preview_timeout", 60)), false, 0)
+	downloadURL, err := handler.Source(ctx, objectPath, int64(model.GetIntSetting("preview_timeout", 60)), false, 0)
 	if err != nil {
 		return nil, err
 	}
@@ -334,7 +334,7 @@ func (handler *Driver) Thumb(ctx context.Context, file *model.File) (*response.C
 }
 
 // Source 获取外链URL
-func (handler *Driver) Source(ctx context.Context, path string, ttl int64, isDownload bool, speed int) (string, error) {
+func (handler *Driver) Source(ctx context.Context, objectPath string, ttl int64, isDownload bool, speed int) (string, error) {
 	// 初始化客户端
 	usePublicEndpoint := true
 	if forceUsePublicEndpoint, ok := ctx.Value(fsctx.ForceUsePublicEndpointCtx).(bool); ok {
@@ -369,11 +369,11 @@ func (handler *Driver) Source(ctx context.Context, path string, ttl int64, isDow
 		signOptions = append(signOptions, oss.TrafficLimitParam(int64(speed)))
 	}
 
-	return handler.signSourceURL(ctx, path, ttl, signOptions)
+	return handler.signSourceURL(ctx, objectPath, ttl, signOptions)
 }
 
-func (handler *Driver) signSourceURL(ctx context.Context, path string, ttl int64, options []oss.Option) (string, error) {
-	signedURL, err := handler.bucket.SignURL(path, oss.HTTPGet, ttl, options...)
+func (handler *Driver) signSourceURL(ctx context.Context, objectPath string, ttl int64, options []oss.Option) (string, error) {
+	signedURL, err := handler.bucket.SignURL(objectPath, oss.HTTPGet, ttl, options...)
 	if err != nil {
 		return "", err
 	}
@@ -401,6 +401,10 @@ func (handler *Driver) signSourceURL(ctx context.Context, path string, ttl int64
 		}
 		finalURL.Host = cdnURL.Host
 		finalURL.Scheme = cdnURL.Scheme
+
+		// 支持代理域名使用子目录
+		// Support sub-directories for proxy domain
+		finalURL.Path = path.Join(cdnURL.Path, finalURL.Path)
 	}
 
 	return finalURL.String(), nil
diff --git a/pkg/filesystem/driver/remote/handler.go b/pkg/filesystem/driver/remote/handler.go
index 5918f3b4e4..7e9373e680 100644
--- a/pkg/filesystem/driver/remote/handler.go
+++ b/pkg/filesystem/driver/remote/handler.go
@@ -116,7 +116,7 @@ func (handler *Driver) getAPIUrl(scope string, routes ...string) string {
 }
 
 // Get 获取文件内容
-func (handler *Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
+func (handler *Driver) Get(ctx context.Context, objectPath string) (response.RSCloser, error) {
 	// 尝试获取速度限制
 	speedLimit := 0
 	if user, ok := ctx.Value(fsctx.UserCtx).(model.User); ok {
@@ -124,7 +124,7 @@ func (handler *Driver) Get(ctx context.Context, path string) (response.RSCloser,
 	}
 
 	// 获取文件源地址
-	downloadURL, err := handler.Source(ctx, path, 0, true, speedLimit)
+	downloadURL, err := handler.Source(ctx, objectPath, 0, true, speedLimit)
 	if err != nil {
 		return nil, err
 	}
@@ -233,7 +233,7 @@ func (handler *Driver) Thumb(ctx context.Context, file *model.File) (*response.C
 }
 
 // Source 获取外链URL
-func (handler *Driver) Source(ctx context.Context, path string, ttl int64, isDownload bool, speed int) (string, error) {
+func (handler *Driver) Source(ctx context.Context, objectPath string, ttl int64, isDownload bool, speed int) (string, error) {
 	// 尝试从上下文获取文件名
 	fileName := "file"
 	if file, ok := ctx.Value(fsctx.FileModelCtx).(model.File); ok {
@@ -263,7 +263,7 @@ func (handler *Driver) Source(ctx context.Context, path string, ttl int64, isDow
 	}
 
 	// 签名下载地址
-	sourcePath := base64.RawURLEncoding.EncodeToString([]byte(path))
+	sourcePath := base64.RawURLEncoding.EncodeToString([]byte(objectPath))
 	signedURI, err = auth.SignURI(
 		handler.AuthInstance,
 		fmt.Sprintf("%s/%d/%s/%s", controller, speed, sourcePath, url.PathEscape(fileName)),
@@ -274,9 +274,12 @@ func (handler *Driver) Source(ctx context.Context, path string, ttl int64, isDow
 		return "", serializer.NewError(serializer.CodeEncryptError, "Failed to sign URL", err)
 	}
 
-	finalURL := serverURL.ResolveReference(signedURI).String()
-	return finalURL, nil
+	// 支持代理域名使用子目录
+	// Support sub-directories for proxy domain
+	serverURL.Path = path.Join(serverURL.Path, signedURI.Path)
+	serverURL.RawQuery = signedURI.RawQuery
 
+	return serverURL.String(), nil
 }
 
 // Token 获取上传策略和认证Token