Abstract: This paper expounds the connotation and origin of the Kenang theory, as well as its correlation with chronic obstructive pulmonary disease (COPD), and focuses on the pathogenesis and treatment of COPD based on the Kenang theory. The Kenang theory emphasizes the importance of the pathological products of phlegm and stasis, and holds that the deficiency of primordial qi and the disorder of qi activity can lead to the intermingling of phlegm and blood, which is highly similar to the etiology and pathogenesis of COPD. The treatment should be guided by the Kenang theory, eliminating phlegm and promoting blood circulation, and its basic treatment principles is to treat phlegm and blood stasis together. Meanwhile, the regulation of qi activity should be paid attention to help eliminate phlegm and promote blood circulation, and the spleen and kidney should be strengthened to nourish primordial qi and consolidate the root, providing new ideas for the clinical treatment of COPD.