Abstract: Functional constipation in children is one of the common diseases in pediatrics,and this study aims to explore the treatment for this disease in traditional Chinese medicine(TCM),with the "Harmony Method" as the core theoretical framework.Firstly,the historical origin and theoretical connotation of the "Harmony Method" are traced,and its core concepts and application background are elaborated in depth.Secondly,it is believed that "loss of harmony of qi and misdirection of conduction" is the core mechanism of the disease,emphasizing the interconnection between qi and the large intestine.The principles of treating this disease are further discussed in depth,and it is proposed that "eliminating evils and supporting vital qi,harmonizing the qi and regulating the qi,and communicating 

Key words:

Constipation, Harmony Method, Movement of vital energy, Syndrome differentiation and treatment