The application of minimally invasive incision in the treatment of congenital heart disease means that the length of the surgical access incision is 6-10 cm, and the incision can be located in the axilla of one side, the middle and lower sternum, the left or right edge of the sternum, and the anterior chest area of one side. The right axillary incision has the features of good concealment, good cosmetic effect and easy operation. With the increasing refinement of extracorporeal circulation and direct cardiac surgery techniques, there has been great interest in the use of minimally invasive incisions to perform cardiac surgery. Although the use of the right anterolateral incision for cardiac surgery has been reported for aesthetic reasons with good clinical results, there are some shortcomings of this incision, such as the potential impact on breast development in women in adulthood, the potential for other traumas during surgery, such as severing a rib or dislocating the sternocostal joint, or even severing the internal mammary artery, as well as the potential hazards associated with other ways of enlarging the operative field. In contrast, a direct right axillary incision, which is far from the internal mammary artery and the sternocostal joint, can avoid these injuries and provide better aesthetic results. It is also less invasive, less painful, and less bleeding. As long as the intercostal artery is not damaged during the operation, there is basically no significant bleeding. Most patients can get out of bed and move around freely in 2 to 3 days after surgery and recover faster after discharge. When the right axillary straight incision is made, the surgical field is directly opposite to the right side of the heart and large blood vessels, which is more convenient for surgical operation and expands the choice of surgical disease compared with the right anterolateral thoracic incision. Currently, in addition to intracardiac repair of ASD, this incision can also be used to perform surgery for congenital heart disease such as triple atrial heart, pulmonary vein ectopic drainage, mitral valve insufficiency repair and valve replacement, aortic valve replacement, and pulmonary subvalvular VSD repair. In conclusion, a straight right axillary incision is more suitable for children under 16 years of age and should be chosen with caution for those over 16 years of age or with a fatter physique.