Abstract: The social situation that social provision embedding in family supporting has generated an interactive mechanism since the new rural insurance pilot in 2009. To clarify the interactive mechanism of family supporting and social provision can help to achieve the targets for the aged people with a better life. Based on 1371 survey data in China’s 8 provinces in 2018, this paper adopts the logistic regression model to explore the impact of participation in public pension system on people’s worrying about old-age life and the status of family supporting. The findings of this study show that people’s worrying about old-age life are a relatively common thing, 74.2% of the research objects are worrying about their old-age life. As they get older, people’s worrying about their old-age life is gradually declining; the worse their health condition, the greater their worries about their old-age life. The participation in public pension system can significantly reduce people’s worrying and create a “synergy effect” with family supporting. The social recognition of the status of family supporting is higher, 87.3% of the research objects believes that family supporting plays an important role. Those with lower age and lower education level, more children and more family savings pay more attention to traditional supporting. The social provision system can effectively reduce the pension risks of urban and rural residents and weaken the expectation of the family supporting function, thus creating a certain level of “substitution effect” on family supporting.

Key words: vulnerability; family supporting; social provision; interaction mechanism