The chronic stomatitis in cats shows inflammation of the oral mucosal tissue, showing severe ulcers and redness of the oral mucosa, which most often affects the caudal side of the mouth, and can usually deteriorate with time and develop into refractory stomatitis. At present, the main treatment method is tooth extraction, which is combined with drugs to manage inflammation and analgesia. In this case, laser treatment combined with traditional treatment mode can effectively reduce pain sensation