Type of the lymphatic system is a new concept put forward by foreign scholars in recent years.It is similar to the lymphatic system,is the brain of the internal fluid metabolism channel and its metabolites in the brain plays a major role in the process of removal,sleep disorders in alzheimer's disease brain stroke,traumatic brain injury and other central nervous system diseases.The Tri-jiao theory is a very important in traditional Chinese medicine plate structure,it is from the function to traffic from running water channel,but still no definite conclusion on structure.This paper attempts to explore the relationship between trioke and the lymphatic system and their influence on Alzheimer's disease through modern medical research on the lymphatic system,so as to provide new inspirations for the treatment of Alzheimer's disease.