This project intends to unite the representatives of typical congenital heart disease hospitals in various provinces and cities across the country to jointly establish a multi-center clinical research collaboration network for children with congenital heart disease in China, establish a platform and mechanism for the collection and sharing of data on children with congenital heart disease in China, and create a real-world public database of children with congenital heart disease in China that benchmarks the international level, so as to provide a solid data foundation for high-quality research on children with congenital heart disease in China.