The utility model relates to a height limiting device and a press assisting device for a bamboo-wood wafer separator, which comprise a height limiting device, wherein the height limiting device comprises a height limiting long bracket and a height limiting short bracket, and a height limiting shaft which is horizontally arranged and has adjustable height is arranged between the height limiting long bracket and the height limiting short bracket; and the back of the height limiting device is provided with a press assisting device, wherein the press assisting device comprises a press assisting long bracket and a press assisting short bracket, a press assisting shaft which is horizontally arranged and has adjustable height is arranged between the press assisting long bracket and the press assisting short bracket, both ends of the press assisting shaft are provided with vertical press assisting small shafts, and springs are sleeved on the press assisting small shafts and are arranged in the press assisting long bracket and the press assisting short bracket. The utility model has the advantages that the height of a bamboo-wood plate is limited by the height limiting device, and the condition that a wafer separation device is blocked because the bamboo-wood plate is too high is prevented; and the bamboo-wood plate is pressed by the press assisting device through a press assisting sleeve barrel, the vibration of the bamboo-wood plate, which is generated in the process of wafer separation, is relieved by the expansion and the contraction of the press assisting springs on the device, and the accuracy of the wafer separation of bamboo-wood wafers is enhanced.