diff --git a/web-service/doc/openapi.json b/web-service/doc/openapi.json
index d86f1fc..25324f5 100644
--- a/web-service/doc/openapi.json
+++ b/web-service/doc/openapi.json
@@ -386,6 +386,16 @@
               "type": "string",
               "example": "uuid123"
             }
+          },
+          {
+            "name": "stoken",
+            "in": "query",
+            "required": false,
+            "description": "分享 token，用于子目录解析时复用认证状态",
+            "schema": {
+              "type": "string",
+              "example": "OASBe5qM0pg2VvvyLM..."
+            }
           }
         ],
         "responses": {
diff --git a/web-service/src/main/java/cn/qaiu/lz/common/util/URLParamUtil.java b/web-service/src/main/java/cn/qaiu/lz/common/util/URLParamUtil.java
index a640eb3..80b1d94 100644
--- a/web-service/src/main/java/cn/qaiu/lz/common/util/URLParamUtil.java
+++ b/web-service/src/main/java/cn/qaiu/lz/common/util/URLParamUtil.java
@@ -68,9 +68,9 @@ public class URLParamUtil {
         boolean firstParam = !decodedUrl.contains("?");
 
         for (String paramName : params.names()) {
-            // 忽略 "url", "pwd", "dirId", "uuid", "auth" 参数（这些参数单独处理，不应拼接到分享URL中）
+            // 忽略 "url", "pwd", "dirId", "uuid", "auth", "stoken" 参数（这些参数单独处理，不应拼接到分享URL中）
             if (!paramName.equals("url") && !paramName.equals("pwd") && !paramName.equals("dirId") 
-                    && !paramName.equals("uuid") && !paramName.equals("auth")) {
+                    && !paramName.equals("uuid") && !paramName.equals("auth") && !paramName.equals("stoken")) {
                 if (firstParam) {
                     urlBuilder.append("?");
                     firstParam = false;
diff --git a/web-service/src/main/java/cn/qaiu/lz/web/controller/ParserApi.java b/web-service/src/main/java/cn/qaiu/lz/web/controller/ParserApi.java
index 6e16346..9e71e41 100644
--- a/web-service/src/main/java/cn/qaiu/lz/web/controller/ParserApi.java
+++ b/web-service/src/main/java/cn/qaiu/lz/web/controller/ParserApi.java
@@ -161,7 +161,7 @@ public class ParserApi {
 
     @RouteMapping("/getFileList")
     public Future<List<FileInfo>> getFileList(HttpServerRequest request, String pwd, String dirId, String uuid,
-                                             String auth) {
+                                             String stoken, String auth) {
         String url = URLParamUtil.parserParams(request);
         ParserCreate parserCreate;
         try {
@@ -176,6 +176,9 @@ public class ParserApi {
         if (StringUtils.isNotBlank(dirId)) {
             parserCreate.getShareLinkInfo().getOtherParam().put("dirId", dirId);
         }
+        if (StringUtils.isNotBlank(stoken)) {
+            parserCreate.getShareLinkInfo().getOtherParam().put("stoken", stoken);
+        }
         if (StringUtils.isNotBlank(uuid)) {
             parserCreate.getShareLinkInfo().getOtherParam().put("uuid", uuid);
         }