AbstractPublic health services for migrants are not only related to their health status, but also crucial to their social integration in the host cities. Using data from the 2017 China Migrants Dynamic Survey, we examine the impacts of urban public health services on migrants’ social integration. We find a positive correlation between the accessibility of public health services among migrants and their social integration. Research on the mechanisms reveals that obtaining public health services contribute to social integration by improving migrants’ health status, fostering the alignment of hygiene practices with those of local residents and promoting family migration. Heterogeneity analysis shows that the positive impact of public health services on social integration is notably pronounced among migrants engaged in informal employment, lacking social security, holding rural hukou and having a relatively brief duration of residence in the host cities. This paper presents valuable insights into migrants’ social integration which is a critical issue for policymakers. By improving the accessibility of public health services, migrants will better integrate into host cities. The findings may be instructive for promoting urbanization in China and other countries.