The invention provides a method for manufacturing a cross ring of a scroll compressor, and belongs to the technical field of compressors. The method solves the problems that in the case of an existingcross ring manufacturing method, the yield is low, the production efficiency is low and the manufacturing cost is high. The method for manufacturing the cross ring of the scroll compressor is performed according to the following sequential steps of firstly, cutting a round tube into a circular ring-shaped blank according to the required height; secondly, heating the blank, moreover, putting the blank into a pre-forming die for extrusion molding, then obtaining a rough blank, and forming four pre-forming portions corresponding to protruding keys in the cross ring in position on the outer sidesurface of the rough blank; and thirdly, heating the rough blank, moreover, putting the rough blank into a fine forming die for extrusion forming, and then obtaining a fine blank. According to the method for manufacturing the cross ring of the scroll compressor, the cross ring blank is formed by adopting hot extrusion, so that the wear resistance and strength of the cross ring are improved, the cross ring blank formed by hot extrusion does not generate air holes, and then the percent of pass of the cross ring blank is improved.