The"mentor system"is an important training strategy to adapt to the comprehensive literacy improvement of college students in the new era,and it has been implemented in many universities in China.However,there are significant differences and even alienation in the implementation of the"mentor system"among different universities and majors,lacking a macro summary and induction of this strategy from the perspective of training models,which is not conducive to the advantages of the"mentor system"in the comprehensive quality cultivation of college students.This paper analyzes the scope of responsibilities and main work of teaching and management related roles under the guidance of the"mentor system",and deeply analyzes the construction and key points of the undergraduate training model under the guidance of the"mentor system"from four aspects:training objectives and assessment methods,curriculum design and organizational form.It also distinguishes relevant misconceptions.The conclusion is as follows:①The"mentor"under the"mentor system"There is a complementary power and responsibility relationship with the homeroom teacher and counselor,which is an optimization and supplement to the existing training mode.Mentors should play a more important role in cultivating students'professional abilities,shaping their personality traits,and building their future career interests.② The implementation of the"mentor system"training mode relies on a significant change in training objectives and assessment methods,which requires a more prominent recognition of students'comprehensive literacy and professional social value.③The"mentor system"requires a more flexible curriculum design that takes into account the relationship between theoretical courses and practical courses,as well as between compulsory and elective courses.It should appropriately increase the proportion of elective courses and highlight the organization of course learning and professional training in a group format.The main forms of learning should be"competition led learning",project research led learning,and"social practice led learning".