Carrying out in a deep-going way undergraduate innovation and entrepreneurship education is an important measure of serving national innovation development strategy, adapting to the economic development of the new normal state, strengthening the connotation construction of colleges and universities and promoting college students to become a moral and useful person. This text analyses emphatically the main problems, dissects the reason and puts forward a proposal of building multi-level, three-dimensional and comprehensive "333" undergraduate innovation and entrepreneurship education system on the basis of full understanding of the importance of undergraduate innovation and entrepreneurship education.