The work aims to change the current situation of disordered and fragmented medical resources for the elderly, so that the related elderly care services can be integrated and developed, forming a continuous, multi-integrated and closed-loop elderly health service chain. Based on the symbiosis theory, the symbiotic logic among medical treatment, rehabilitation, health care, and nursing care services was discussed. Combined with the three elements of the symbiosis theory, an in-depth analysis was conducted to make the symbiosis units (service providers) interdependent and mutually beneficial. Finally, driven by the service design thinking and relying on the "Internet +" technology, a symbiosis service system was integrated and constructed. The intervention of the symbiosis theory breaks the information barriers of service providers and enables them to develop in a unified direction, which can avoid waste caused by overlapping resources and achieve the system benefit of "1+1>2". At the same time, the construction of the community "medical and health care" service symbiosis system based on the symbiosis theory brings new reference and development directions for the integration and embedding of other elderly care service resource modules (clothing, food, housing, transportation, etc.).