Abstract:In pulse diagnosis, three positions (Cun, Guan, Chi) and three depths (Fu, Zhong, Chen), namely the Three Positions and Nine Indicators are generally used as a finger-reading method to obtain a holistic view of the disease of the patient. Previous research on the pulse diagnosis mainly focus on the Guan pulse, and the objectification study of Three Positions and Nine Indicators is still in its infancy. There are not unified hardware and software assistance. There are corresponding relations between Cun Guan Chi and viscera, so to obtain information from three positions of the wrist artery is an important part of pulse diagnosis. Fortunately, with the development of science and technology, researchers had developed three pulse acquisition devices which had made certain contribution.