Elevator energy-saving device

The embodiment of the utility model provides an elevator energy-saving device. Practical application, a weight sensor is arranged on the outer side of the inner bottom surface of the elevator body; the weight sensor is used for detecting weight information of the bottom wall of the elevator body; the weight information is sent to the controller; the controller judges whether passengers exist at the current time point of the elevator or not according to the weight information; when the controller obtains the current time point; non-passenger elevator, controller controlling lamp body to be powered off, according to the energy-saving device provided by the embodiment of the utility model, whether the lamp body is turned on or not can be controlled according to the actual situation, so that the technical effect of saving electric energy is achieved. According to the energy-saving device provided by the embodiment of the utility model, when no passenger exists in the elevator, the scheme of illuminating the eleva