Abstract：As a pivot who undertakes internal and external affairs，shaoyang is closely related to the rise and fall of the human body's qi movement，the distribution of body fluids，and the balance of organ functions. The main causes and pathogenesis of type 2 diabetes mellitus are qi movement blockage，internal obstruction of dampness and heat，loss of yin and fluid，and deficiency of viscera function. According to the development of the disease，it can be divided into four different stages：depression，heat，deficiency，and injury. If the shaoyang pivot is not favorable，it can lead to abnormal qi movement，abnormal circulation of body fluids，and dysfunction of internal organs. Under the guidance of the theory of "shaoyang governing the pivot"， the purpose of preventing and treating type 2 diabetes mellitus can be achieved by using the method of reconciling shaoyang to regulate the qi movement and body fluid circulation and improve the function of viscera.