Babies with congenital heart disease have different clinical manifestations due to the existence of a single or complex disease. Some are found to have cyanosis of skin and mucous membranes, shortness of breath and heart failure in newborn babies, and will die prematurely if not diagnosed and treated in time. Some children are asymptomatic, with normal growth and activity, and are found to have congenital heart disease only when the doctor finds a heart murmur on physical examination during occasional visits for colds and respiratory infections. In order to facilitate parents’ understanding of how to detect congenital heart disease at an early stage and how to treat it in time and other scientific knowledge, we now divide congenital heart disease into three categories according to its hemodynamic and anatomical characteristics and shunt direction, and describe its main symptoms and performance respectively. The first left to right heart shunt group often has the following clinical symptoms and manifestations: 1. shortness of breath: in the newborn or infant period, the child is found to be impatient for food because of hunger, but it is found that sucking is weak, breathing is shallow into, sucking milk is not finished before abandoning the milk due to shortness of breath and gasping for breath, sucking a few mouthfuls and then stopping, feeling tired and sweating profusely. 2, repeated respiratory infections or pneumonia: this is the most common symptom and consultation found heart murmur, because the lungs are congested, a mild respiratory infection can easily cause bronchopneumonia, resulting in choking and coughing, shortness of breath, some babies sound hoarse when crying, and even symptoms such as cardiac insufficiency. 3, growth retardation: due to the insufficient flow of body circulation and blood oxygen supply, growth and development is slower than that of children of the same age, and its weight lag is more obvious than the length lag. 4.Oedema: When congenital heart disease children are found to have various symptoms and manifestations mentioned above, if little urine is found and sunken edema appears in the lower limbs, it means that the children are unable to compensate from the function and cause heart failure, which is a very important warning! 5, cyanosis: generally this group of diseases will not appear cyanosis, but if not treated in time, causing complications of pulmonary hypertension, resulting in blood flow right heart to left heart shunt can appear cyanosis, also indicates that the opportunity for treatment has been lost. The second type of right-to-left heart shunt group is a complex malformation of congenital heart disease. Common clinical symptoms and performance are: 1, cyanosis or cyanosis: is an important symptom of complex congenital heart disease, manifested in the skin, mucous membrane (especially mouth and lips) cyanosis, especially after crying and noise, activity intensified, such as cyanosis in the neonatal period, common are complete aortic dislocation, pulmonary atresia, etc.; in 6 months to 1 year gradually appear cyanosis aggravated by the Fale tetralogy of Fallot, etc. 2. Squatting: It is a common manifestation of Faller’s tetralogy, besides cyanosis aggravated with age, when he can walk, you will find that the child does not have much activity and feels weak after walking a short distance, so he will automatically take a squatting position or take a chest and knee position, and then stand up again after resting for a moment. 3, fainting: also known as hypoxic seizures, often occur in nursing, crying, defecation due to lack of oxygen, baby sudden respiratory distress, cyanosis increased, unconsciousness and even cramps. 4, pestle-like fingers (toes): in Fallux tetralogy of Fallot, due to long-term hypoxia in babies, soft tissue hyperplasia at the end of the fingers (toes), so that the fingers and toes are drumstick-like changes, often appear clinically after 2 to 3 years of age. 5. Hemoptysis: In cases of children with tetralogy of Fallot, the rupture of blood vessels forming the collateral circulation in the lungs can cause hemoptysis due to long-term hypoxia. The third type: no shunt group has no abnormal traffic in the left, right heart or large blood vessels, so there is no pulmonary congestion often leading to respiratory and pneumonia manifestations, nor the presence of arterial and venous blood mixing, so there is also no cyanosis manifestations, common diseases are simple pulmonary valve stenosis; aortic constriction, etc.