According to the architectural type, construction dynasty, geographical location, architectural characteristics, historical achievements of ancient buildings in Nanyue, the classification and sorting have solved the design expression and application ways of ancient buildings in Nanyue in the design of lamps and lanterns as a whole. Through observation and analysis of the development process and practical problems of the lighting industry since modern times, combined with typical cases, the application methods of traditional decorative elements in products are explored from two levels of depth, and it is clear that the decorative elements of ancient buildings in Nanyue are integrated into the design of lamps and lanterns. The main way is to transform the traditional decorative elements into modern aesthetics, combine craftsmen and the spirit of the times, make full use of technology and emerging green materials, thus clearly clarifying the "people-oriented" that the decorative elements of ancient buildings in Nanyue need to be applied in lamps and lanterns. The concept of humanized design, and the point of view that design should serve the inheritance and innovation of culture, and express it in a modern and even future way.