There are three main ideas in 《A Collection of the Six Perfection》: to propagate the ideas in "The Training of Bodhi Sattva", to propagate the idea of Buddhist politics and to actively mix Buddhism with Confucianism. In order to clearly present the thinking of "The Training of Bodhi Sattva" , this article excerpts the meaning of "Six Perfection" from each chapter's introduction separately, and then it also draws a conclusion from each "Perfection" 's story about why practicing "Six Perfection", the attitude we should have when practicing "Six Perfection", and the Karma of practicing "Six Perfection". Accordingly, the theories in this book are not very complete, so with the addition of discussing the idea of this book, this article will also give additional explanations based on other theories in Mahayana scriptures. In the aspect of the idea of Buddhist Politics, This book regarded the Buddhist cakravartin as an ideal, hoping that rulers could rule their countries based on the attitude that they had come to the world to save people . In regard with cultivating people's thinking, the ideal king put great emphasis on the mind-cultivating function of the Buddhist doctrine. In regard with the penalty thinking, This book considering that the crimes people committed were the mistakes caused by their ignorance, which was pity-worthy, therefore, rulers should base on the Buddhist mercy, save penalty and death sentence. In regard with its concept of national defense and wars, This book still insisted on the Buddhist mercy he rules of no killing, in the hope that rulers could avoid wars as far as possible. In regard with the idea of managing people's lives, on the one hand, it taught people to reduce their desires and not to indulge in material enjoyment. On the other hand, it also showed much concern about poor people, consequently, it earnestly encouraged the behavior of giving. In the aspect of combining with Confucian thinking, the situations of Buddhism's combining with Confucian thinking were very common and obvious. With regard to ethics, this book emphasized the moral principles between men and women highly, which showed different perspective of morality from that of India's. This book also added the Confucian moral thinking into the Buddhist "Five Don'ts" frequently. In regard to political thinking, this book evidently exceeded the limits of the Buddhist Politics. In some political ideas, like the idea of the changing of the heavenly mandate, the idea of political responsibility, the idea of returning to the ruling of the good rulers, the anti-war idea, and economic idea of people are the foundation of the state, etc. All of these traces indicate that the above ideas don't come directly from the Buddhist Politics. They are the result of Buddhism's mingling with Confucianism's political thinking.