As the aging process deepens, China’s pension problem is becoming increasingly serious, and home-based pension services are also booming. Artificial intelligence (AI) has been well applied in the field of old-age care. In this article, the use of AI in home-based care (HBC) services and the construction of health system were reviewed. This article took the current situation of senior care in District X as the basis for an in-depth discussion on the connotation of its senior care services. On this basis, a corresponding intelligent service platform for old people at home was designed, which provided feasible countermeasures for the development of old people at home service in a larger scale. According to the experimental results in this paper, the largest weight value of old people’s demand for the first type of services was medical care services, with a weight value of 0.289, and the smallest was spiritual comfort, with a weight value of 0.13. This also shows that old people have the greatest demand in medical care services, and the demand in spiritual comfort services is relatively small. Therefore, this paper focused on building a health care system during the design of a smart home service system.