Purpose This study investigates collaboration dynamics within Chinese left-behind children (LBC) research through co-authorship network analysis. Method Using Web of Science data from 2017 to 2023, the study maps a research network involving 886 authors and 1,944 links. Results The analysis reveals sparse collaboration and fragmented structure, predominantly featuring single-paper contributors. Notable institutions such as Zhejiang Normal University, Zhejiang University, and Anhui Medical University have emerged as pivotal hubs facilitating interdisciplinary LBC research. Their prominence is attributed to geographic proximity and institutional emphasis on LBC-related studies. This study identifies key authors and influential contributors, shedding light on knowledge dissemination. Conclusions The findings underscore the need for targeted support mechanisms for pivotal institutions and advocate for cross-cluster collaborations to enhance research cohesion and impact. Emphasizing the significance of fostering a dedicated LBC research community, the utility of social network analysis in revealing collaboration patterns, and informing strategic interventions in social work.