Abstract: The mathematical expression of Chinese characters is a novel method to describe Chinese characters Based on the analysis of components of Chinese characters,an algorithm of automatic generation of mathematical expression is presented in this paper Firstly, about 500 Chinese character components are chosen, and nine basic properties are selected for each of them: connectivity number, genus number, end number, turn number, joint number, cross number and NMI, HNMI, and VNMI; then by segmenting or combining connective regions, a Chinese character is divided into Chinese character components; finally, by recognizing the components and the Chinese character structure, the mathematical expressions are obtained Satisfying experimental result shows that the correct ratio of mathematical expressions is 92% Automatic generation of mathematical expressions will facilitate the management and transmission of Chinese information in the fields such as typesetting printing, advertising and package design, network transmission, Chinese mobile communication, and so on