The invention relates to a slotting device, particularly to a wood slotting device capable of achieving automatic discharge, and provides the wood slotting device capable of achieving automatic discharge, which utilizes machinery to replace manual work. The wood slotting device capable of achieving automatic discharge provided to solve the technical problem comprises a rack, a driving device, a conveying device, a cam device, a discharge device, and the like, wherein the driving device is arranged on the rack; the conveying device is arranged on the right side of the driving device; the cam device is arranged above the driving device; the discharge device is arranged below the cam device; a slotting device is arranged below the cam device; and a switch device is arranged below the right side of the discharge device. According to the wood slotting device, an automatic slotting function is achieved, an automatic conveying function is achieved, and the wood slotting device has the characteristics that the slotting speed is high, operation is convenient, manufacturing is simple, manufacturing cost is low, popularization is facilitated, and the like.