Self-enrollment assessment includes written examination and interview, and the written examination is no more than twice, which examines students' thinking ability, problem analysis and problem solving ability and students' literary and cultural level. Interview examines students' knowledge reserve and comprehensive ability accomplishment. The proportion of written test and interview results is different with different written test subjects of independent enrollment in colleges and universities. Not only are the test items and contents very different, but even the test subjects are very different. In the self-enrollment examination questions, most of them are related to what they have learned, while the liberal arts and science examination papers mainly focus on basic subjects to examine students' ability and logical thinking. The initial test of independent enrollment in Tsinghua University adopts written test. The examination subjects are: mathematics and logic, science synthesis (materialization) and liberal arts synthesis (literature and history). Students choose two of them according to the reported professional categories. Shanghai Jiaotong University written test questions reference: Mathematics: geometry, ten small questions, six big questions for two hours. Physics: mechanics, three small problems, five big problems, two hours. Physical thermodynamics has an analysis problem. Language: I got the Eight Immortals in "Eight Immortals Crossing the Sea" and asked to choose an option that is not the Eight Immortals. Written test content: The written test for self-enrollment focuses on students' higher-level thinking ability, comprehensive application of knowledge to analyze and solve problems, students' literary and cultural level, understanding of current events and reading level of various articles, as well as students' logical thinking, ability to analyze and solve problems and language application ability. Interview examination content: The interview of independent enrollment in colleges and universities mainly examines students' comprehensive knowledge reserve and comprehensive ability accomplishment, which usually involves some knowledge in the college entrance examination, but more questions are based on common social phenomena, events, problems and common sense in daily life to examine the comprehensive quality of candidates.