The invention relates to a drawer panel locking device which comprises a handle body and a connecting rod arranged on the handle body, wherein a latch hook is arranged on the connecting rod; a return assembly is arranged on the middle part of the connecting rod; the return assembly comprises a pressure block and an elastic sheet arranged on the pressure block; a limiting block is arranged on the pressure block; and the pressure block is arranged on the connecting rod. The drawer panel locking device has the advantages: the handle body controls the latch hook on the connecting rod to realize locking of a drawer panel; the return assembly controls the handle body to return, so that the condition that the drawer is automatically opened when a cabinet vibrates or the front surface of the cabinet is low during lock opening is avoided; the return assembly is arranged to be a structure comprising the pressure block and the elastic sheet, so that return is realized by compressing the elastic sheet through the pressure block, and the return effect is good; and the limiting block is arranged for limiting return amount of the handle body, so that the locking effect of the latch hook can be guaranteed, and the using effect is good.