Idiopathic pulmonary fibrosis(IPF) is a chronic，progressive，and fatal lung disease of unknown etiology，which belongs to the “lung impediment” and “lung atrophy”.From the opening，closing，and pivot theory and combined with pathological factors of deficiency，phlegm，blood stasis，and pathogenic toxin，the pathogenesis of IPF could be summarized as a malfunction of the opening of greater yang and the closing of yang brightness，the opening of greater yin and the pivot of lesser yin，as well as the closing of reverting yin and the opening of the greater yin.Based on the opening，closing，and pivot theory，the treatment of IPF focuses on opening the qi of greater yang to banish the pathogen of external disturbance，pivoting the qi of lesser yin to eliminate phlegm and blood stasis，as well as closing the qi of reverting yin to descend the lung.In addition，it is combined with closing yang brightness and opening greater yin.By flexible treatment，the opening，closing，and pivot are smooth.Then，the harmony of yin and yang will generate everything to restore deficiency，eliminate phlegm and blood stasis，remove evil，and purify the lung.