Objective To evaluate the efficacy and safety of lenalidomide combined with rituximab in recurrent follicular lymphoma. Methods A randomized controlled trial on 23 patients with recurrent follicular lymphoma were conducted,with follow-up until April 2016. The participants were divided into two groups,simple treatment group( lenalidomide 15 mg/d alone) and combination group( lenalidomide 15 mg/d plus rituximab 375 mg/m2/week). Results Ten cases were assigned into Simple treatment group,and 13 into combined t...