Abstract: To improve the teaching effect to foreigners in learning and grasping Chinese character components and make the foreign learners memorize Chinese characters accurately and effectively and master Chinese character's written architecture and habits,this paper designs and implements a CALL software which is based on the learning theories of CALL and implements starting with the analysis of Chinese character components.This paper describe the main ideas of design and implementation process of the four modules of the overall design,interface design,function design and technical realization.