diff --git a/README.md b/README.md
index c58b193..31937c6 100644
--- a/README.md
+++ b/README.md
@@ -17,3 +17,6 @@
 * Dubbo相关的编码规则：[参考1](http://fe.58qf.com/2017/11/07/node-dubbo/)，[参考2](http://cxis.me/2017/03/19/Dubbo%E4%B8%AD%E7%BC%96%E7%A0%81%E5%92%8C%E8%A7%A3%E7%A0%81%E7%9A%84%E8%A7%A3%E6%9E%90/)
 * Dubbo的心跳机制：<http://www.cnblogs.com/java-zhao/p/8539046.html>
 * 部分实现参考了dubbo的Java源码中的实现
+* 对于所有的字符串，在网络传输前进行编码，编码一律使用unicode来完成，如果一个字符串是str则先将其decode为unicode之后再进行操作；
+* 对于所有的字符串，在网络上获取到的数据之后进行解码，解码得到的字符串是unicode，之后将其encode为str再交给客户程序；
+* 支持传输utf-8编码和Emoji🧐
\ No newline at end of file
diff --git a/dubbo/codec/decoder.py b/dubbo/codec/decoder.py
index 16fc9e6..cd9ba0f 100644
--- a/dubbo/codec/decoder.py
+++ b/dubbo/codec/decoder.py
@@ -161,7 +161,7 @@
         :param length:
         :return:
         """
-        value = ''
+        value = u''
         for i in range(length):
             ch = self.read_byte()
             if ch < 0x80:
@@ -175,7 +175,7 @@
                 value += unichr(((ch & 0x0f) << 12) + ((ch1 & 0x3f) << 6) + (ch2 & 0x3f))
             else:
                 raise ValueError('Can\'t parse utf-8 char {}'.format(ch))
-        return value
+        return value.encode('utf-8')  # 将unicode转化为str类型
 
     @ranges((0x00, 0x1f), (0x30, 0x33), 0x52, ord('S'))
     def read_string(self):
@@ -185,7 +185,7 @@
         """
         value = self.read_byte()
         string = ''
-        while value == 0x52:
+        while value == 'R':
             length = unpack('!h', self.read_bytes(2))[0]
             string += self._read_utf(length)
             value = self.read_byte()
@@ -198,7 +198,7 @@
             length = (value - 0x30) << 8 | self.read_byte()
 
         string += self._read_utf(length)
-        return string.encode('utf-8')  # 将unicode转化为str类型
+        return string
 
     @ranges((0x60, 0x6f), ord('O'))
     def read_object(self):
diff --git a/dubbo/codec/encoder.py b/dubbo/codec/encoder.py
index 0652224..4c9b1e5 100644
--- a/dubbo/codec/encoder.py
+++ b/dubbo/codec/encoder.py
@@ -91,7 +91,7 @@
                     parameter_types += 'J'
             elif isinstance(argument, float):
                 parameter_types += 'D'
-            elif isinstance(argument, str):
+            elif isinstance(argument, (str, unicode)):
                 parameter_types += 'Ljava/lang/String;'
             elif isinstance(argument, Object):
                 path = argument.get_path()
@@ -157,7 +157,7 @@
         elif isinstance(value, int):
             if value > MAX_INT_32 or value < MIN_INT_32:
                 result.append(ord('L'))
-                result.extend(list(bytearray(struct.pack('>q', value))))
+                result.extend(list(bytearray(struct.pack('!q', value))))
                 return result
 
             if INT_DIRECT_MIN <= value <= INT_DIRECT_MAX:
@@ -216,13 +216,11 @@
             result.append(bits >> 8)
             result.append(bits)
             return result
-        # 如果是unicode则转义为str类型后再进行操作
-        elif isinstance(value, unicode):
-            return self._encode_single_value(value.encode('utf-8'))
         # 字符串类型
-        elif isinstance(value, str):
-            # 根据hessian协议这里的长度必须是字符(char)长度而不是字节(byte)长度，所以需要Unicode类型
-            value = value.decode('utf-8')
+        elif isinstance(value, (str, unicode)):
+            # 在进行网络传输操作时一律使用unicode进行操作
+            if isinstance(value, str):
+                value = value.decode('utf-8')
             length = len(value)
             if length <= STRING_DIRECT_MAX:
                 result.append(BC_STRING_DIRECT + length)
diff --git a/tests/run_test.py b/tests/run_test.py
index 99fefa4..9629e19 100644
--- a/tests/run_test.py
+++ b/tests/run_test.py
@@ -16,7 +16,7 @@
         self.dubbo = DubboClient('me.hourui.echo.provider.Echo', host='127.0.0.1:20880')
 
     def test_run(self):
-        print self.dubbo.call('test2', '🐶')
+        print self.dubbo.call('test2', u'🐶🐶🐶111🐶🐶🐶你好啊啊🐶🐶🐶🐶の🐶🐶🐶🐶')
 
         # print dubbo.call('echo', ['张老师', '三', 19, 2000.0, True])
         #