According to the different requirements of various disciplines and majors on the mathematical knowledge and ability that graduate students should have when entering the postgraduate entrance examination, there are three kinds of postgraduate entrance examination papers: one is engineering, the other is mathematics; Mathematics III is aimed at economic management. There are specific regulations on the types of test papers used by different majors. Mathematics problem-solving for postgraduate entrance examination mainly examines the comprehensive application ability, logical reasoning ability, spatial imagination ability and the ability to analyze and solve practical problems, including calculation problems, proof problems and application problems. The content is comprehensive, but some questions can be answered by elementary solution. Teacher Li, the teaching and research section of cross-examination education mathematics, said that the thinking of solving problems is flexible and diverse, and sometimes the answer is not unique, which requires students not only to do the questions, but also to find out the test intention of the proposer and choose the most appropriate method to answer them.