diff --git a/interfaces/kits/js/src/mod_fileio/common_func.cpp b/interfaces/kits/js/src/mod_fileio/common_func.cpp
index b03d1e07cd933a328c3de2aa1408b737a02c28fa..e03d5c9de20be8f1aee6957b440b41f9528f815f 100644
--- a/interfaces/kits/js/src/mod_fileio/common_func.cpp
+++ b/interfaces/kits/js/src/mod_fileio/common_func.cpp
@@ -32,6 +32,27 @@ namespace DistributedFS {
 namespace ModuleFileIO {
 using namespace std;
 
+void InitOpenMode(napi_env env, napi_value exports)
+{
+    char propertyName[] = "OpenMode";
+    napi_property_descriptor desc[] = {
+        DECLARE_NAPI_STATIC_PROPERTY("READ_ONLY", NVal::CreateInt32(env, RDONLY).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("WRITE_ONLY", NVal::CreateInt32(env, WRONLY).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("READ_WRITE", NVal::CreateInt32(env, RDWR).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("CREATE", NVal::CreateInt32(env, CREATE).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("TRUNC", NVal::CreateInt32(env, TRUNC).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("APPEND", NVal::CreateInt32(env, APPEND).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("NONBLOCK", NVal::CreateInt32(env, NONBLOCK).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("DIR", NVal::CreateInt32(env, DIRECTORY).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("NOFOLLOW", NVal::CreateInt32(env, NOFOLLOW).val_),
+        DECLARE_NAPI_STATIC_PROPERTY("SYNC", NVal::CreateInt32(env, SYNC).val_),
+    };
+    napi_value obj = nullptr;
+    napi_create_object(env, &obj);
+    napi_define_properties(env, obj, sizeof(desc) / sizeof(desc[0]), desc);
+    napi_set_named_property(env, exports, propertyName, obj);
+}
+
 static tuple<bool, void *, int> GetActualBuf(napi_env env, void *rawBuf, int64_t bufLen, NVal op)
 {
     bool succ = false;
diff --git a/interfaces/kits/js/src/mod_fileio/common_func.h b/interfaces/kits/js/src/mod_fileio/common_func.h
index 5c0adb2e152434e9ae4ea3b1a673ecca09c9a33d..2ef467d28fadee3a4f40bd48e4010528801d7a9d 100644
--- a/interfaces/kits/js/src/mod_fileio/common_func.h
+++ b/interfaces/kits/js/src/mod_fileio/common_func.h
@@ -22,6 +22,18 @@ namespace OHOS {
 namespace DistributedFS {
 namespace ModuleFileIO {
 constexpr int64_t INVALID_POSITION = std::numeric_limits<decltype(INVALID_POSITION)>::max();
+constexpr int RDONLY = 00;
+constexpr int WRONLY = 01;
+constexpr int RDWR = 02;
+constexpr int CREATE = 0100;
+constexpr int TRUNC = 01000;
+constexpr int APPEND = 02000;
+constexpr int NONBLOCK = 04000;
+constexpr int DIRECTORY = 0200000;
+constexpr int NOFOLLOW = 0400000;
+constexpr int SYNC = 04010000;
+
+void InitOpenMode(napi_env env, napi_value exports);
 
 struct CommonFunc {
     static int ConvertJsFlags(int &flags);
diff --git a/interfaces/kits/js/src/mod_fileio/module_v9.cpp b/interfaces/kits/js/src/mod_fileio/module_v9.cpp
index 7f2bb4bce468ec1817b2ba05ec2711e856698752..2e1cc8635b02c5aa692eea0a149f49ce1fd45398 100644
--- a/interfaces/kits/js/src/mod_fileio/module_v9.cpp
+++ b/interfaces/kits/js/src/mod_fileio/module_v9.cpp
@@ -19,6 +19,7 @@
 #include "../common/log.h"
 #include "class_file/file_n_exporter.h"
 #include "class_stat_v9/stat_n_exporter_v9.h"
+#include "common_func.h"
 #include "properties/prop_n_exporter_v9.h"
 
 using namespace std;
@@ -28,6 +29,7 @@ namespace DistributedFS {
 namespace ModuleFileIO {
 static napi_value Export(napi_env env, napi_value exports)
 {
+    InitOpenMode(env, exports);
     std::vector<unique_ptr<NExporter>> products;
     products.emplace_back(make_unique<PropNExporterV9>(env, exports));
     products.emplace_back(make_unique<FileNExporter>(env, exports));