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Ceramic cultural relics are an essential part of China's historical and cultural heritage. Binders such as epoxy resin adhesive are often used in the repair of ceramic artifacts. After long-term placement, these binders lose their bonding function, so they need to be cleaned so that new binders can be used to continue repairing the ceramic samples. In this paper, laser cleaning technology is combined with the protection of ceramic cultural relics. Try using nanosecond pulsed laser cleaning machine to clean epoxy on the ceramic surface. In this paper, we use laser confocal high power microscope to observe and compare the cleaning effect of adhesive, and explore the best cleaning parameters. According to the control variable method, the three influencing parameters of laser power, scanning speed, and cleaning parameters were changed to control the cleaning degree of epoxy resin. It was observed that when the scanning speed was 500mm/s, the laser power was 35W, and the number of cleaning times was 29, the epoxy resin and contaminants on the ceramic surface were cleaned entirely without damaging the base. When the laser power is increased or the processing times are raised, the removal rate of epoxy resin on the surface of the substrate increases, but the substrate the substrate will be damaged. Therefore, this group of tests is the best combination of cleaning parameters.
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