Abstract: China will experience rapid aging in the next 30 years, and how to deal with the problem of aging is a multidisciplinary proposition. Comparing the long-term care model of the elderly at home and abroad, it is found that there are still obvious deficiencies in China in terms of demand mining, service assessment and evidence think tank. The improvement of evidence-based social work intervention in the long-term care model of the elderly should first clarify the rights and liabilities of the multi-party system from the the framework level; combine the environment, preferences and characteristics as well as scientific evidence to obtain the best evidence, and then implement the best evidence according to the five classical steps of evidence-based practice, namely determining needs, evaluating evidence, program design, service evaluation and summation and feedback, so as to improve the existing long-term care model for the elderly and provide social workers reference of scientific intervention in aging.

Key words: evidence-based social work, long-term care for the elderly, model study