The invention discloses a system for removing gear burrs. The system comprises an upper support system and a lower support system, wherein the upper support system is fixed to an upper table top of the lower support system; a gear rotating structure system is arranged on the lower support system; a rotating shaft of the gear rotating structure system passes through the upper table top of the lower support system; a pushing structure system is also arranged on the upper table top of the upper support system; a spindle of the pushing structure system passes through the upper table top of the upper support system; the rotating shaft is coaxial with the spindle; a brush system is arranged on a side edge support of the upper support system; a moving chamber through which the brush system can move up and down is arranged on the side edge support; a shaft of the brush system passes through the moving chamber, and a brush is arranged on the shaft. According to the system, a device for treating the surface burrs of a gear in a multi-linkage manner is designed; a three-linkage control manner is carried out, so that the burrs on the gear surface can be effectively removed, and moreover, the engaging performance of the gear cannot be influenced.