With the deepening of aging in China, the demand for health services for the elderly is growing rapidly, which brings challenges to the supply of elderly care services in China. As an important means of the construction of China's elderly care service system in the new era, the combination of community medicine and elderly care is an important way to meet the diversified and multi-level health service needs of the elderly. However, the current practice and exploration in various regions have revealed that there are still some problems in the combination of community medical care in China, such as weak service ability, insufficient public awareness, imperfect policy-making, lack of financing and payment means and so on. This study combs the development status of community medical care and elderly care services in China, uses the diagnostic tree model, takes supply and demand as the main entry point, analyzes the main problems existing in the development of community medical care and elderly care, and puts forward targeted countermeasures and suggestions from the five management dimensions of financing, payment, organization, behavior and regulation according to the control valve theory, in order to provide reference for the promotion and implementation of community medical care and elderly care in China.