Abstract： Objective To summarize and analyze the methods of termination of pregnancy in the first and second trimester of pregnancy with severe cardiovascular disease. Methods A retrospective analysis of 27 cases of termination of pregnancy in the first and second trimester of pregnancy in Beijing Anzhen Hospital from January 1, 2016 to December 30, 2017. All of these pregnant women were pregnancy complicated with severe cardiovascular disease in grade Ⅴ pregnancy risk. Results (1)The age of 27 pregnant women was 22-40 years, gestational age was 6-27 weeks; cardiac function grade before induced labor was: 5 cases of grade Ⅱ, 15 cases of grade Ⅲ, 7 cases of gradeⅣ. The cardiovascular diseases included ventricular septal defect in 9 cases, simple atrial septal defect in 3 cases, patent ductus arteriosus in 2 cases, tetralogy of Fallot in 2 cases, rheumatic valvular disease in 1 case, arrhythmia-paroxysmal atrial velocity in 2 cases, cardiomyopathy in 2 cases, hypertensive cardiopathy in 2 cases, primary pulmonary hypertension in 1 case, tissue disease complicated with pulmonary hypertension 1 case, hyperthyroid heart disease in 1 case, coronary heart disease in 1 case. Among them, 21 cases were complicated with pulmonary hypertension, and 5 cases with Eisenmenger syndrome.(2)Methods of termination of pregnancy:in 27 cases, eight cases of vacuum curettage, and 2 cases of forceps curettage under general anesthesia without intubation;rivanol intraamniotic induction of labor in 1 case;and hysterotomy delivery in 16 cases (11 cases were treated with continuous epidural anesthesia, 1 case was treated with combined spinal and epidural anesthesia, 4 cases were treated with spinal anesthesia).(3)After termination of pregnancy, one patient with severe primary pulmonary hypertension at 19 weeks of gestation died on the 1st day postoperative. No significant changes in cardiac function were observed in other patients before and after termination of pregnancy, and all of them survived. Conclusions In patients with severe cardiovascular disease, termination of pregnancy after pregnancy may result in maternal death even at the second trimester of pregnancy. It is strongly recommended that such patients undergo pre-pregnancy assessment and fertility counseling. If visiting doctor after pregnancy, we should organize a multidisciplinary consultation as soon as possible to assess the risk of continuing pregnancy and give medical advice. If the risk of pregnancy is high, we should terminate the pregnancy as early as possible, after making a suitable treatment plan. During termination of pregnancy, temporary or permanent contraception may be taken if the condition permits.