diff --git a/interfaces/kits/js/src/mod_fs/fs_utils.cpp b/interfaces/kits/js/src/mod_fs/fs_utils.cpp
index fdd6ca4e42d2b60e1dae9235506be61f8ec98d5d..6ce1f5693c60e6f0522147c5c3584f0506b2a034 100644
--- a/interfaces/kits/js/src/mod_fs/fs_utils.cpp
+++ b/interfaces/kits/js/src/mod_fs/fs_utils.cpp
@@ -85,25 +85,4 @@ string FsUtils::GetModeFromFlags(const uint32_t &flags)
     return mode;
 }
 
-string FsUtils::Decode(const string &uri)
-{
-    ostringstream outPutStream;
-    const int32_t encodeLen = 2;
-    size_t index = 0;
-    while (index < uri.length()) {
-        if (uri[index] == '%') {
-            int hex = 0;
-            istringstream inputStream(uri.substr(index + 1, encodeLen));
-            inputStream >> hex >> hex;
-            outPutStream << static_cast<char>(hex);
-            index += encodeLen + 1;
-        } else {
-            outPutStream << uri[index];
-            index++;
-        }
-    }
-
-    return outPutStream.str();
-}
-
 } // namespace OHOS::FileManagement::ModuleFileIO
diff --git a/interfaces/kits/js/src/mod_fs/fs_utils.h b/interfaces/kits/js/src/mod_fs/fs_utils.h
index 1cddb0660355d67c3d83bd52464a066047ed3e47..7ce915ebfdc60df81e578329b547ef03d78d9275 100644
--- a/interfaces/kits/js/src/mod_fs/fs_utils.h
+++ b/interfaces/kits/js/src/mod_fs/fs_utils.h
@@ -91,7 +91,6 @@ public:
     static uint32_t ConvertFlags(const uint32_t &flags);
     static void FsReqCleanup(uv_fs_t *req);
     static string GetModeFromFlags(const uint32_t &flags);
-    static string Decode(const string &uri);
 };
 
 } // namespace OHOS::FileManagement::ModuleFileIO