Wireless remote control grab is a kind of efficient tool for loading and unloading granular, small-block bulk cargo, such as coal, sand, mineral powder and bulk chemical fertilizer, which is suitable to the crane with single drum used on the working site such as port, yard. The characteristic of grab is simple structure, novel opening and closing mechanism, opening and closing of grab is controlled by remote controller, convenient operation, reliable action. The lifting capacity of crane is normally 10t~40t.