The invention discloses an industrial intelligent lighting voltage stabilizer which comprises a main circuit, a control circuit, a power saving device, a bypass system and a lighting terminal. The main circuit is connected with the control circuit. The power saving device and the bypass system are connected in parallel and are connected with the control circuit and the lighting terminal. The main circuit comprises an autotransformer and a bidirectional thyristor bridge. The autotransformer is arranged on the voltage input end. The bidirectional thyristor bridge is connected with the autotransformer and the voltage input end. According to the invention, the industrial intelligent lighting voltage stabilizer has the advantage of low cost; the transforming is safe, efficient and low-input; and on the premise that 20%+/-5% of energy is saved for the energy-saving transforming of a line device, the illumination brightness is not reduced.