A circumcision stapler comprises three parts: an upper stapler, a lower stapler and a rivet fastening and regulating member, wherein an outer knife, an inner knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes are arranged on the upper stapler; an inner knife, an outer knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes, and a rivet fastening column are arranged on the lower stapler.