There are an increasing number of women with CHD seeking to bear children，and once pregnant，the risk of heart and maternal and fetal complications increases，and heart function is furhter damaged.The risk depends on the type of congenital heart disease，degree of hemodynamic impairment，and potential complications.Strengthening the comprehensive management of such patients，conducting careful individual and multidisciplinary risk assessment，and formulating detailed plans for follow-up during pregnancy，delivery and postpartum treatment can reduce the risk and improve perinatal outcomes，which has important significance for reducing maternal mortality.