Abstract
The COVID-19 pandemic has placed enormous stress on health workers, exposing them to high levels of work-family conflict (WFC), which in turn affects their life well-being（LWB). To date, whether WFC is involved in the association between COVID-19 stress and the well-being of life has not been investigated. The purpose of this paper was to explore the connection between COVID-19 stress and LWB in Chinese nurses and to analyse the mediating role of WFC and the moderating effect of work centrality. The link between COVID-19 stress and LWB was examined by performing multiple regression analysis, common method bias analysis, and confirmatory factor analysis on data for 227 nurses.COVID-19 stress exerted a remarkable direct impact on nurses' LWB, and WFC mediated the link between COVID-19 stress and nurses' LWB. Work centrality moderated the link between COVID-19 stress and nurses' WFC. COVID-19 stress decreases nurses' LWB and increases their WFC, which also decreases their LWB. For nurses with higher work centrality, the connection of COVID-19 stress to work-family conflict was stronger. Hospital managers should focus on nurses' work-family balance and pay particular attention to the work-family balance of work-centered nurses to avoid compromising their LWB.