Abstract:Objective：To investigate the the preference for old-age support of middle-aged and old people in Nantong city，and to explore the influencing factors to provide basis for optimizing the allocation of pension resources in Nantong city. Methods：Convenience sampling method was used to select 183 middle-aged and elderly people in Nantong who met the inclusion criteria of ≥45 years old. The self-made questionnaire was used，and the investigators conducted face-to-face survey on the respondents. The questionnaire mainly included demographic information，family information，health status and preference for old-age support. Results：A total of 183 questionnaires were sent out，and 175 were effectively received，with an effective rate of 95.6%. The number of people who chose institutional elderly care was the largest，accounting for 52.6%（92/175），followed by community based elderly care services，accounting for 26.3%（46/175），and family endowment was the least，accounting for 21.1%（37/175）. Education level，living place and number of children have influence on elderly-care service choices. Compared with family endowment，people with secondary school education are more likely to choose family pension than those with junior college education（B=-1.687，P < 0.01），Compared with family endowment，rural residents are more inclined to choose family endowment than urban residents（B=-1.753，P < 0.01），and people with one child are more likely to choose community based elderly care services（B=1.584，P < 0.05）and institutional elderly care services（B=1.584，P < 0.05）compared to those with more children.