Biaoxingma method
Traditional Chinese表形碼輸入法
Simplified Chinese表形码输入法
Literal meaningshape-expressing code input method
Alternative Chinese name
Traditional Chinese表形碼
Simplified Chinese表形码
Literal meaningshape-expressing code

The Biaoxingma Input Method (simplified Chinese: 表形码输入法; traditional Chinese: 表形碼輸入法; pinyin: biǎoxíngmǎ shūrùfǎ; lit. 'shape-expressing code input method'), also abbreviated to simply Biaoxingma (simplified Chinese: 表形码; traditional Chinese: 表形碼; pinyin: biǎoxíngmǎ; lit. 'shape-expressing code'), is a kind of shape-based Chinese character input method invented by Chen Aiwen, an overseas Chinese scholar living in France in the 1980s. Because it is intuitive in the splitting of Chinese characters and has theoretical support in Chinese characters, it had once attracted widespread attention at the beginning of the invention and was listed as a key project in China Torch Project. However, there was afterwards no such influence as Wubi method and Zhengma method in terms of popularization and commercialization.[1]

Biaoxingma was pre-installed by Microsoft in Chinese Windows 95 and Windows 98 first edition,[2][3] but was removed from Windows 98 second edition and later Windows versions.

Biaoxingma was also installed in IBM AIX.[4]


The smallest constituent parts of each Chinese character are called strokes. One or more strokes form the components of a character. Characters are divided into several components, which are coded to the English letter resembling them. Due to the resemblance of the letter and the character components it refer to, Biaoxingma is easy to learn and remember compared with Wubi method and Zhengma method. Moreover, the biggest advantage of Biaoxingma is that crossed strokes are never divided into two components. In other words, the character components never cross each other. This makes the way of splitting characters very intuitive.

Here are two examples:

"吼" - divided into - O+Z+L = OZL
"啊" - divided into - O+P+T+O = OPTO


  1. ^ "表形码侵权案宣判 一审7年拖垮一公司" (in Chinese). Jan 16, 2001.
  2. ^ 高毓乾 (1996). ""表形码"脱颖而出预装入中文WINDOWS95中". 微型电脑应用 (3).
  3. ^ "表形码为何能脱颖而出?——国家火炬计划项目和国家信标委有关负责人答记者问". 天津科技 (3). 1996.
  4. ^ AIX 5L Differences Guide Version 5.2 Edition (PDF). p. 786.[permanent dead link]