The invention discloses a control device for automatically turning off an automobile headlamp. The control device includes a fixing plate, a first sleeve frame and a second sleeve frame are clamped tothe top of the fixing plate. The second sleeve frame is located on the side edge of the first sleeve frame, a ballast, a photosensitive switch and a power socket are sequentially arranged on the inner side of the first sleeve frame, a temperature controller and a relay are arranged on the inner side of the second sleeve frame, and a plurality of sets of elastic fixing supporting feet are installed at the bottom of the fixing plate. The elastic fixing supporting feet are arranged at the bottom of the fixing plate; the whole fixing device is fixed through the fixing pieces on the elastic fixingsupporting feet; spring rods are arranged on the inner sides of the elastic fixing supporting feet, extrusion resistance can be achieved, the extrusion resistance of the whole control device is improved, electronic devices can be conveniently installed and fixed through the first sleeve frame and the second sleeve frame, and the heat dissipation performance of the whole device is effectively improved by clamping heat dissipation clamping plates into the inner sides of the first sleeve frame and the second sleeve frame.