Abstract: This paper analyzes the main problems in the teaching of basic courses in colleges and universities, and introduces the teaching of signals and systems course in University of Electronic Science and Technology of China. We analyze the existing problems in the course of the reform. The problems of the existing curriculum and assessment methods are analyzed, and the reform of the examination methods, especially the final use of the ‘Written Examination Plus Interview’ form and content of examination. The reform plan can be used for reference for higher mathematics, circuit analysis, etc.