Operative therapy for the foot and ankle disorders of rheumatoid arthritis (RA) have been changing with advances in drug therapy. The surgical techniques, joint-preserving procedure for the RA foot and total ankle arthroplasty for the RA ankle, are the surgical techniques which allow patients with RA not only to relief their pain but also obtain higher lower limb function. Recently, more and more patients with RA have been receiving joint-preserving procedure for the foot or total ankle arthroplasty for the ankle. Therefore, in this article, we would like to describe surgical therapy for the lower limb of patients with RA.