To document the therapeutic effects of Feiwei granules (FGs) for idiopathic pulmonary fibrosis (IPF). One hundred cases with IPF were randomized into the treatment group (80) and control group (20). Both groups were given basic treatment with prednisone. The treatment group was given FGs, and the control group was given Jinshuibao capsules (JCs). Treatment lasted for 6 months. The Medical Research Council Dyspnea Scale (MRCDS), the Saint George's Hospital Respiratory Questionnaire (SGHRQ), pulmonary function, the Traditional Chinese Medicine Syndrome Score (TCMSS), 6-min walking test (6MWT) and blood gas analyses were recorded before the study as well as 3 months and 6 months after treatment. FGs showed greater efficacy than the control in certain parameters between before the study and 6 months, and between 3 months and 6 months, in the MRCDS, some indicators in the SGHRQ, and the TCMSS. There were no significant differences between the treatment group and control group in the remainder of the indices evaluated. In the treatment group, there were significant differences in before and after treatment in the MRCDS, SGHRQ, TCMSS and 6MWT. FGs were similar to JCs for IPF treatment.