This research evaluate the efficacy and safety of Huangqi Guizhi Wuwu decoction in treating Rheumatoid arthritis from the aspects of clinical efficacy rate, visual analog scale (VAS), swollen joint count (SJC), morning stiffness time, Rrythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF), and adverse reaction incidence. Here, CRP is linked to rheumatoid arthritis.