The pathogenesis of chronic obstructive pulmonary disease(COPD) is complex，and there are various pathological manifestations.Traditional Chinese medicine believes that the disease is most closely related to the lung and spleen.Lung deficiency affects the spleen and spleen deficiency affects the lung，resulting in prolonged course of disease and repeated attacks.During treatment，the method of banking up earth(spleen) to generate metal(lung) should be emphasized，giving consideration to both lung and spleen.This method has a long history，and with the change of dynasties，it had been continuously enriched and developed.Therefore，banking up earth(spleen) refers to replenishing the spleen and qi，as well as harmonizing the spleen and stomach，moistening the middle energizer，reinforcing the healthy qi，consolidating root，and tonifying pectoral qi，to treat the lung.In modern medicine，the scientific connotation of banking up earth(spleen) to generate metal(lung) in the treatment of COPD has gradually become clear，and the method exerts excellent curative effects in different stages of the disease.This fully reflects the importance and superiority of the method，which is expected to provide reference for the prevention and treatment of COPD by Chinese medicine.