Introduction to the Basic Principles of Marxism is the main course of ideological and political theory course system in colleges and universities, and it is also a compulsory course for students of all majors in our school. This is a course that systematically teaches the basic theory of Marxism, covering almost all the important contents including Marxist philosophy, political economy and scientific socialism, but it is not a simple addition of these three parts. This course not only sees the background of the times when Marxism was founded, but also comprehensively expounds the basic theories, positions, viewpoints and methods of Marxism according to the practical requirements of development, focusing on explaining the world outlook and methodology of Marxism and taking the basic laws of human social development as the main line. Integrating theory with practice, this paper expounds the basic principles of Marxism in the process of answering the major issues of contemporary development of Marxism that students care about. Specifically, it includes a correct understanding of the law of development of the material world, the law of human understanding, the law of development of capitalist society and the law of development of socialist society. Systematic education on Marxist theory can help students grasp Marxism as a whole, correctly understand the basic laws of human social development, establish Marxist outlook on life and values, and cultivate and improve their ability to analyze and solve practical problems by using Marxist theory. Lay a solid theoretical foundation for students, establish the ideal and belief of building a Socialism with Chinese characteristics, and consciously adhere to the party's basic line.