A method for solving a problem of protrusion of a cadmium red glazed porcelain plate by counterweights includes steps: drilling 3-5 holes in the lower portion of the porcelain plate; when the cadmium red glazed porcelain plate is hung in a suspension firing electric kiln, penetrating to hang 3-5 silicon carbide open circular rings into holes in the lower portion of the porcelain plate, closing a door of the kiln, gradually heating to 1200+/-50 DEG C, keeping the temperature for 10+/-2min, stopping heating, and naturally cooling the kiln to the room temperature. The porcelain plate fired according to the method is smooth and free of protrusion, and the problem of protrusion of the cadmium red glazed porcelain plate in an existing suspension firing process can be solved effectively.