Building energy-saving decorative plate

The utility model relates to the technical field of decorative plates, in particular to a building energy-saving decorative plate which comprises a wall body, a mounting groove is formed in one side of the wall body, a decorative plate body is arranged in the mounting groove, cavities are formed in the two sides of the decorative plate body, fixing grooves are formed in the two sides of the mounting groove, and a moving mechanism is arranged on one side of the interior of each cavity. A fixing mechanism is arranged in the cavity, a solar panel is arranged in the decorative plate, a positioning groove is formed in the decorative plate, a fixing frame is arranged at the top end in the decorative plate, a mounting cavity is formed in the top end of the decorative plate, and a limiting mechanism is arranged in the mounting cavity. Through the first handle, the movable rod, the first gear, the second gear, the first screw rod, the movable block, the limiting column, the fixed block, the limiting rod, the spring an