Platinum-based chemotherapy with or without bevacizumab is the first-line treatment for patients with recurrent or metastatic cervical cancer (r/mCC), and the treatment options are limited for r/mCC after first-line treatment. Enlonstobart (SG001) is a fully humanized and high-affinity anti-PD-1 immunoglobulin G4 monoclonal antibody. Previous phase Ib study demonstrated that SG001 had a promising efficacy in patients with PD-L1 positive r/mCC.