Objective To explore the effect of a trinity model of service involving nurses, social workers and volunteers in children with congenital heart disease （CHD）. Methods Nurses, social workers and volunteers formed a service team and provided therapeutic games, psychological care, charity service, health education and theme-based activities for CHD children and their families. Results From January 2018 to December 2021, we provided game therapies for 2,897 children, psychological care for 764 families, charity service for 1,897 children, and health education for 2,149 children.The overall satisfaction of children and their families with hospitalization was 98.47%, 98.59%, 98.67% and 98.79% in 2018-2021.All nurses, social workers and volunteers believed their communication ability was enhanced. Conclusion A trinity model of service involving nurses, social workers and volunteers offers psychological and financial support as well as health education for children and their families, and enhances their satisfaction.