The invention provides an automatic veneer collecting machine, and belongs to the field of wood processing devices. The automatic veneer collecting machine comprises a rack and a transportation device, wherein the transportation device is mounted on the rack, comprises a first driving component and a first conveying belt component, and further comprises a second conveying belt component; the first driving component is connected with the first conveying belt component; the first conveying belt component is obliquely arranged; the higher end of the first conveying belt component is an outlet end; the first conveying belt component comprises first conveying belts; the second conveying belt component comprises second conveying belts; the second conveying belts transport veneer in the transportation direction of the first conveying belt component; the lower surfaces of one ends of the second conveying belts are in contact with the upper surfaces of the first conveying belts; and the other ends of the second conveying belts extend towards the outer sides of output ends of the first conveying belts, and are downwards obliquely arranged relative to the output ends. According to the automatic veneer collecting machine, integration and automation of wood plate collecting and stacking can be achieved, the automatic veneer collecting machine is applicable to a rotary cutting machine with high rotation speed, the integral structure is simple, the operation is easy and convenient, and relatively good practicability and market prospect are achieved.