The invention provides an improved rice cake cutting device. A transport belt transporting from left to right is arranged in the middle of the top of a workbench, and the transport belt transports extruded long-shaped rice cakes. Clamping plates are arranged at the positions, located on the front and rear sides of the transport belt, of the top of the workbench, and clamping cylinders are connected to the outer sides of the clamping plates. The clamping cylinders are fixed to the top of the workbench, and the two clamping plates are located above the transport belt for clamping the rice cakes.A top plate is arranged at the top of the workbench, a top rail is arranged at the bottom of the top plate, down-pushing cylinders are distributed at the bottom of the top rail, cutters are arrangedat the bottoms of the down-pushing cylinders, and the cutters are pushed downward to cut the rice cakes. The extruded long-shaped rice cakes are transported to the right end on the transport belt, theclamping cylinders are started, the two clamping plates clamp the rice cakes, and then the down-pushing cylinders drive the cutters to push down, and the cutters cut the rice cakes, so that the ricecakes can be cut efficiently and quickly, the cut rice cakes are transported to a receiving box, and the receiving box is pushed and pulled by push-pull cylinders to receive evenly.