diff --git a/src/sdk/bfs.h b/src/sdk/bfs.h
index bfd9c72f..a16f8503 100644
--- a/src/sdk/bfs.h
+++ b/src/sdk/bfs.h
@@ -13,6 +13,8 @@
 #include <map>
 #include <vector>
 
+#include "noncopyable.h"
+
 namespace baidu {
 namespace bfs {
 
@@ -59,7 +61,7 @@ struct FSOptions {
 };
 
 /// Bfs File interface
-class File {
+class File : public noncopyable {
 public:
     File() {}
     virtual ~File() {}
@@ -71,10 +73,6 @@ class File {
     virtual int32_t Flush() = 0;
     virtual int32_t Sync() = 0;
     virtual int32_t Close() = 0;
-private:
-    // No copying allowed
-    File(const File&);
-    void operator=(const File&);
 };
 
 struct BfsFileInfo {
@@ -86,7 +84,7 @@ struct BfsFileInfo {
 };
 
 // Bfs fileSystem interface
-class FS {
+class FS : public noncopyable {
 public:
     FS() { }
     virtual ~FS() { }
@@ -128,10 +126,6 @@ class FS {
                                  std::map<int64_t, std::vector<std::string> >* locations) = 0;
     virtual int32_t ShutdownChunkServer(const std::vector<std::string>& cs_address) = 0;
     virtual int32_t ShutdownChunkServerStat() = 0;
-private:
-    // No copying allowed
-    FS(const FS&);
-    void operator=(const FS&);
 };
 
 } // namespace bfs
diff --git a/src/sdk/file_impl_wrapper.h b/src/sdk/file_impl_wrapper.h
index ef9ecb9a..62a16c1b 100644
--- a/src/sdk/file_impl_wrapper.h
+++ b/src/sdk/file_impl_wrapper.h
@@ -34,9 +34,6 @@ class FileImplWrapper : public File {
     virtual int32_t Close();
 private:
     std::shared_ptr<FileImpl> impl_;
-    // No copying allowed
-    FileImplWrapper(const FileImplWrapper&);
-    void operator=(const FileImplWrapper&);
 };
 
 } // namespace bfs
diff --git a/src/sdk/noncopyable.h b/src/sdk/noncopyable.h
new file mode 100644
index 00000000..0bccd137
--- /dev/null
+++ b/src/sdk/noncopyable.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2017, Baidu.com, Inc. All Rights Reserved
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef BFS_SDK_NONCOPYABLE_H_
+#define BFS_SDK_NONCOPYABLE_H_
+
+namespace baidu {
+namespace bfs {
+
+class noncopyable {
+public:
+  noncopyable() {}
+  ~noncopyable() {}
+private:
+  noncopyable(const noncopyable&) {}
+  void operator=(const noncopyable&) {}
+};
+
+} // namespace bfs
+} // namespace baidu
+
+#endif  // BFS_SDK_NONCOPYABLE_H_