Hydrogel is a kind of functional polymer material. Because of its excellent characteristics such as high-water absorption, biocompatibility and stimulus response, hydrogel is widely used in biological tissue engineering, drug-controlled release, wastewater treatment, chemical mechanical devices, household products and other fields. The traditional hydrogels often have some disadvantages, such as slow response rate and fragile, which limit the application range of hydrogels. In this paper, we prepared a photo curable hydrogel photothermal response driving material. Because PNIPAAm hydrogel has excellent thermal driving response effect, it will shrink when the temperature is higher than 32 °C, and gold nanoparticles are good photothermal response materials. Therefore, the hydrogel actuator can realize fast response driving, and has excellent photothermal response efficiency and good environmental adaptability. The research scheme is to first prepare gold nanoparticle sol with appropriate concentration, and then synthesize PNIPAAm /AuNPs nano hydrogel. Its performance was characterized by SEM, TEM and UV spectroscopy, and its driving performance was studied.