In recent years, with the rapid development of economy and the progress of medical science and technology, the treatment of congenital heart disease has entered a new stage, and the treatment level of domestic pediatric congenital heart disease has approached the international advanced level, especially in the treatment of common congenital heart disease, which has crossed into the international advanced level. The following is my experience and thoughts on the treatment of precardiac disease: a. Concerned about the long-term outcome of patients with precardiac disease Clinical medicine is an empirical science, clinicians can only treat a large number of patients to constantly sum up their experience, find out the shortcomings of clinical work and improve and enhance it. For example, for the treatment of complex precocious heart disease tetralogy of Fallot, in the early years, doctors were more concerned about how to reduce the mortality rate after surgery; in recent years, in addition to reducing the risk of surgery, we also pay more attention to the long-term outcome of patients with tetralogy of Fallot, for example, the health status decades after surgery, which requires us to continuously research and explore, improve the concept of treatment and surgical methods to achieve more satisfactory treatment results. For complex precordial disease, our philosophy should be: 1) to reduce perioperative mortality; 2) to use minimally invasive techniques to reduce surgical trauma; 3) to improve long-term outcomes; 4) to improve long-term quality of life. In earlier years, the treatment of precordial disease was aimed at reducing complications and improving the cure rate, but not enough consideration was given to the long-term quality of life, especially to surgical trauma and surgical scarring. Insufficient attention was paid to trauma and surgical incision scar, and many patients were distressed by the incision scar on the chest, which seriously affected the quality of patients’ future work, life and marriage. Therefore, it is important for doctors to fully consider the long-term quality of life of patients in addition to ensuring their safety. Therefore, for the treatment of precardiac disease, how to avoid surgical incisions, smaller incisions or concealment, so as to achieve minimally invasive treatment, is the direction of our efforts to research and explore. For common precordial diseases, our treatment philosophy should be: 1. minimally invasive and cosmetic treatment to reduce surgical trauma; 2. ensure surgical safety and long-term efficacy; 3. improve long-term quality of life. In short, the treatment of precardiac disease has entered a new stage, i.e., the stage of paying more attention to long-term efficacy and quality of life.