中文摘要：

大学生考试作弊的机会主义行为不利于形成公平有效的考核、选拔环境,在我国构建诚信社会的背景下,大学生考试作弊行为的研究更为重要.将学生分为成绩好的学生和成绩差的学生两类学生群体,用演化博弈的方法对大学生考试作弊的机会主义行为的演化进行解释和分析,研究了大学生群体向作弊及诚实考试演变的影响因素,以及所达到的均衡状态.得到结论：考试作弊还是诚信行为的最终演化结果和初始状态有关,增加学生考试作弊的成本,减少作弊可能带来的收益,同时努力的提高群体的诚信考试氛围等措施对于遏制考试作弊有很重要的作用.

英文摘要：

In this article, in order to analyze opportunism behavior in exam, the students was divided into two groups according to different grades. It used evolution game to analyze the influencing factors of evolution and the final equilibrium. It concluded that the final results of cheating or being honest is related to the initial state. And the important ways to reduce the cheating are increasing the cheating costs, reducing the benefits of cheating and constructing honest environment.