The function of five zang viscera was a time regulation system of the human body which operated according to climate change. Synchronously changing with the waxing and waning of yin-yang, the physiological function of a certain viscus in corresponding season was in a dominant position, which regulating itself and other four viscera. Correctly understanding of the theoretical connotation of five zang viscera corresponding with the season had guiding significances for understanding of pathogenesis, diagnosis, prevention and treatment of five zang viscera disease as well as health maintenance.