A cover plate assembly for a vehicle, characterized in that it includes:—a cover plate provided with a flat plate-like main body of the cover plate; and—a counter-part provided with a plate-like main body of the counter-part, the counter-part main body having a through-hole matching with the shape of the cover plate main body, and two guide plates projecting in the through-hole area and supporting the cover plate main body thereunder; wherein the cover plate assembly is in drawer structure, the cover plate being configured to be assembled to the counter-part by sliding along the guide plates. The cover plate assembly in drawer structure is simply structured, low in cost and easy to operate.