Abstract: Collateral disease is an important part of traditional Chinese medicine theory.In recent years, under the guidance of collateral disease theory of traditional Chinese medicine, the treatment of major chronic non-communicable diseases has achieved remarkable curative effects, which has aroused great attention in academic circles. In order to explore the new teaching mode of collateral diseases of traditional Chinese medicine and to improve the innovative ability of postgraduates, Capital Medical University has constructed a new teaching mode of collateral diseases of traditional Chinese medicine,which integrates classroom teaching,clinical teaching and scientific experiment. Practice has proved that the teaching mode of collateral diseases of traditional Chinese medicine is conducive to the expansion of students'academic vision and the cultivation of students' innovative ability.