Sun Yiwei and Li Qiang put forward the concept of "compressed aging" in the 4th issue of Academia Bimestris (2023) to analyze the issue of urban old-age care from the perspective of space-time compression. It is found that under the compression of time, China needs to face the coexistence of tradition, first modernity and second modernity at the same time. Under the compression of space, China needs to face at the same time the superposition of urbanization and aging in geographical space, the differentiation of collective consumption and the squeeze on private consumption in institutional space, and the "downward shift of emphasis and upward shift of pressure" within families in living space. This compression of time and space eventually leads to many problems in urban elderly care, such as the high proportion of middle and low-income elderly, family occupying resources of the elderly's self-support, and the failure of elderly care management. In order to solve these problems, the government should take a family rather than an individual as the basic unit of governance, and build a diversified old-age care model based on the community type and different needs of the elderly after differentiation.