The utility model provides a double-sided chamfering machine, which is characterized in that a speed reduction motor, a shaft coupling, bearings, chamfering and cold-extruding wheel sets and a gantry skeleton are mounted on a working platform, wherein the speed reduction motor is connected with the shaft coupling to drive the chamfering and cold-extruding wheel sets to rotate in opposite directions. The double-sided chamfering machine has the advantages that the design structure is simple, the use is convenient, the processing efficiency is improved and the production cost is reduced. Therefore, a cold processing technology of double-sided chamfering of bushes used for welding press-welding axle housings is realized.