The Light Conference 2023 will take place in Changchun, China from 11 August to 16 August 2023. The conference consists of Plenary session, Ceremony of Wang Daheng’s Optical Prizes and Light 10 Social Influence Events, Light Doctoral League, invited sessions on Laser manufacturing and processing/Micro and nanophotonics/Optical imaging and metrology/Optical communications and devices/Next-generation optics-related technologies/Terahertz technologies. With 2023 Light Conference week, they hope to resonate with UNESCO’s International Day of Light, contribute to the well-being of optics community, highlight the frontiers of optics and photonics, showcase the industrial advances in optoelectronics, and incubate a platform for optical innovations and talents.