The theory of visceral manifestations is an access to know human body through traditional Chinese medicine (TCM). That is to say, “inside diseases shows signs outside.” The state of the internal organs can be judged via body temperature. In the meantime, life is the function of time which is influenced by four seasons, and the pulse manifestation is related with the change of four seasons. Therefore, to study the changing rules of the internal organs thermal state of ordinary people due to four seasons and their correlation becomes a key scientific problem, and it is the foundation for developing modern studies on the viscera physiology and pathology. “Changing laws of five zang organs based on four seasons” is fundamental in disease prevention, health preservation, disease prognosis and treatment based on syndrome differentiation, which is essentially affected by changes and individualism. Therefore, as a new way for research, to recognize the internal organs thermal state of ordinary people, pulse graphic models and their parameters changing rules is the premise and foundation for deeply conducting clinical treatment based on syndrome differentiation.