The purpose of this paper was to investigate the influence of bowels and viscera therapy's theory from Yuan-su Zhang. Inherited the theory of the visceral manifestation, the like or dislike of five visceral system and the five flavors into organs from the Nei Jing, Yuan-su Zhang had established a complete system about bowels and viscera therapy and drug channel-entry. Those may lay the foundation for the later diagnosis and treatment of organs & herbal drugs therapy. He also affected the habits of modern practitioners of clinical medicine. In addition to the academic study of traditional Chinese medicine, he did teach everything what he had known. That would help to improve future medical advances and be also worth the other teacher to learn.