In order to determine the changes of TGFβ1/NOX4 and PDGF/ROCK signal pathway in idiopathic pulmonary fibrosis after Yifei decoction combined with MitoQ intervention, we detected the expression levels of TGFβ1, NOX4, PDGFR-β, and ROCK1. This evidence concerns the gene ROCK1 and idiopathic pulmonary fibrosis.