I. Termination of pregnancy is highly recommended: mainly for diseases for which no treatment or very poor treatment is determined at this stage, and such pregnant women should terminate pregnancy sooner rather than later. 1. There are abnormalities in genetic-related tests and clearly untreatable lesions, such as chromosomal diseases, genetic mutations of clear significance, etc.; 2. Combined with serious malformations of multiple organs; 3. Rapid growth and large amount of pericardial effusion in a short period of time with unclear boundaries, considering malignant cardiac tumors, or cardiac tumors with large areas of basal and myocardial tissues. II. Recommended termination of pregnancy: mainly for diseases that have treatment methods at this stage, but need to undergo multiple surgeries, huge expenses and uncertain long-term prognosis. Severe arrhythmias that affect the quality of long-term survival: congenital III° atrioventricular block; 2. Pre-existing cardiac diseases in which anatomical correction cannot be performed to restore biventricular circulation; 3. Hypoplastic left heart syndrome; 4. Severe valvular lesions; 5. Severe pulmonary vascular dysplasia; 6. Severe cardiac failure combined with fetal edema. Third, the recommended reservation: mainly for the present stage has a definite treatment method, the long-term prognosis is better, but need to spend more disease. 1.Complete transposition of the great arteries; 2.Double outlet of the right ventricle; 3.Pulmonary atresia with good pulmonary vascular development; 4.Tetralogy of Fallot with poor pulmonary vascular development; 5.Complete ectopic drainage of pulmonary veins; 6.Aortic constriction; 7.Complete atrioventricular septal defect. IV. Highly recommended for preservation: mainly for diseases with definite treatment, low cost and good long-term prognosis. 1.Premature heart diseases with low surgical risk and operable cure: such as ventricular septal defect, large atrial septal defect, single atrium, well-developed pulmonary vascular tetralogy of Fallot, pulmonary valve stenosis; 2.Non-malignant arrhythmia: such as frequent supraventricular premature beats; 3.Variant structures with normal function: such as permanent left superior vena cava, right-position aortic arch.