The invention relates to a scroll compressor. A bearing pedestal retainer is fixed on the retainer mounting face of a bearing pedestal, and a bearing pedestal steel ball washer is installed on the inner side of the retainer mounting face. An orbiting scroll retainer is fixed on the retainer mounting face of an orbiting scroll, and an orbiting scroll steel ball washer is installed on the outer side of the retainer mounting face. Steel balls are installed between the two retainers, the distance between the retainer mounting face of the bearing pedestal and the steel ball bearing face of the bearing pedestal steel ball washer is greater than the critical distance of interference caused by relative motion of the two faces to the steel balls, or the distance between the retainer mounting face of the orbiting scroll and the steel ball bearing face of the orbiting scroll steel ball washer is larger than the critical distance of the interference caused by the relative motion of the two faces to steel balls. When the compressor operates for the first time, the bearing pedestal or the orbiting scroll is ground by the steel balls to form a raceway, so that the loads of each steel ball and a corresponding retainer hole are reduced during the operation of the compressor and the service life of an anti-autorotation mechanism of a thrust ball bearing is prolonged, therefore, the service life of the scroll compressor is greatly prolonged.