Disclosed is an electric puncher. The electric puncher includes at least one punching device, a rotating shaft and a drive unit. The punching device further includes a support frame arranged on the base and a punching assembly that moves up and down along the support frame. The rotating shaft can be connected with the support frame through rotation. The rotating shaft is furnished with eccentric cams that drive the punching assembly to move up and down. The staggered arrangement of eccentric cams enables the punching assemblies to asynchronously move up and down during the rotation of rotating shaft. The drive unit drives the rotating shaft to rotate. The asynchronous vertical motion of various punching assemblies helps to save labor, thereby alleviating the requirements for motor output power and gear strength.