Oral cavity is an important organ to maintain life, oral health and longevity have a close relationship. Therefore, the elderly pay more attention to oral health care, pay attention to the prevention and treatment of oral diseases, in order to be beneficial to prolong life. Keep the oral cavity clean elderly teeth gap increase, easy to leave food debris, such as not timely cleaning will be ashamed of deterioration, reproduction of bacteria corrosion of teeth, stimulate the oral mucosa, so the elderly must maintain after meals mouthwash, morning and evening brushing health habits, brushing teeth can also gently brush the tongue, timely removal of dirt in the oral cavity to reduce the propagation of bacteria. Oral hygiene and cleaning must be comprehensive and to adhere to every day, not interrupt. Smoking not only pollutes the oral cavity, but also affects the sense of taste, must quit. Timely treatment of oral disease, set a good denture According to the development of oral disease law, people should be carried out annually – oral examination, the elderly should be examined every six months, some dental disease can not be found on their own, such as caries of the root, and oral pre-cancer lesions, etc., and sometimes need to be pathologically examined. As the saying goes, “Toothache is not a disease, but pain plays with people’s lives.” The holes of dental caries, accumulating food, breeding bacteria, is a potential disease-causing factor, which is unfavorable to the whole body health. Therefore, should be timely treatment of oral diseases, caries holes should be timely repair. The residual root or residual crown has been corroded seriously, difficult to repair should be extracted early, missing teeth should be set in time, in order to restore the chewing function early, conducive to the digestion and absorption of food. Enhance the physical health of the oral cavity is an important part of the whole body, the state of health of the whole body, the oral and dental health also has a direct impact. Therefore, the elderly should adhere to the outdoor activities, playing tai chi, practicing qigong, maintain optimism, spiritual love fast, nutrition is reasonable, are conducive to enhance the resistance of the elderly, keep the mouth clean, delay the teeth, periodontal tissues of the aging process, thereby reducing the oral disease of the hair of the red have easy to live long.