Realistic head model is the basis for the EEG forward problem and inverse problem.The morphological differen ces of the head model inevitably have some bias to EEG analysis because the surface of the head model needs triangles treatment when the related computation is processed.However,European and American head models are mostly used in the current EEG analysis software.In this paper,aiming to build the Chinesse realistic head model,the improved Marching Cubes Algorithm was used to generate the surface triangles based on the 56 MRI scans,and the differences between Chinese and the westerners head models were visually compared,which showed the similar shape difference as previous studies.The consTructed Chinese head model provides a more accurate echinical support for further EEG related analysis in China.