The invention discloses a ceramic plate used for multi-layer papermaking machinery. The ceramic plate comprises an ordinary ceramic plate located in the middle, two sides of the ordinary ceramic plateare separately and symmetrically provided with an aluminum oxide ceramic plate, one side surface, close to the ordinary ceramic plate, of each aluminum oxide ceramic plate is provided with a plurality of swallowtail-type grooves, one corresponding position of the ordinary ceramic plate is provided with a swallowtail-type bulge, the ordinary ceramic plate is in fit connection with the aluminum oxide ceramic plates through the swallowtail-type grooves and the swallowtail-type bulges, and surface roughness of the outer side surfaces of the two aluminum oxide ceramic plates is consistent. The ceramic plate provided by the invention adopts the ordinary ceramic plate as a base plate, and the aluminum oxide ceramic plates are connected with two sides of the base plate through a swallowtail groove structure, so that the price is reduced; and one aluminum oxide ceramic plate located on one side can be replaced by one aluminum oxide ceramic plate located on the other side to be used as a working surface after being worn, so that the service life is prolonged, and the use costs are further reduced.