The late clinical teaching is the last stage of medical undergraduate teaching, which is the bridge connecting theory and practice. In order to better analyze the teaching practice of internship period for medical undergraduates, we divide it into three stages: early stage, middle stage and late stage. There are different difficulties and key points in the separate stages. Psychological adaptation issue caused by role change in the early stage needs psychological intervention of clinical teachers. Learning burnout in the middle stage needs new teaching method to improve Students' interest. More importantly, we practice and reflect on late clinical teaching with the example of damp heat in the spleen and stomach, which exercising students' ability to analyze and integrate knowledge to help balance the practice work and the review of postgraduate entrance examination.