Nowadays, there are more and more case of plagiarism in Chinese colleges. Why do those people , even some famous professors copy theses? Maybe the reason can be listed as follows. The first one is that so many colleges consider the number of theses to be very important. Besides,the development of Internet makes it easy to get others' theses. As a result, common people lose confidence in those scholars. For instance,several months ago a report says the total number of Chinese theses is ranked the second in the world, but too many people don't believe the quality of those theses. It is high time that something were done about this problem. On the one hand, colleges shouldn't uate someone solely by the number of his/her theses. The quality is more important. On the other hand, we should strengthen morality education, helping more people know more clearly that honesty is a Chinese traditional virtue. All these measures will certainly reduce the number of academic plagiarism.