In recent years, many marketing corporations have been faced with the problem of cheating on the accounting information,which has brought a serious economic consequence directly.

Based on the game model of "prisoner dilemma", this paper set up the game model of the students’ cheating in an examination and the game model of the teacher—student’s cheating in an examination, indicated the reasons of the students’ cheating in an examination, put forward the conditions and countermeasures of how to prevent the cheating in an examination.

Higher education examinations for self-learners are quite prosperous nowadays in China,yet cheating is a serious problem in the examinations,where cheaters with different and complicated intentions use various cheating means,what s important,they do so nearly openly.