Placenta accreta，as an obstetrical conundrum，often leads to perinatal hemorrhage，which is difficult to control and endangers the life of pregnant women. The incidence and diagnosis rate of placenta accreta is increasing year by year and more and more women are being diagnosed due to the high rate of cesarean section，the adoption of a domestic second-child policy and the development of imaging technology. To date，worldwide guidelines or consensuses still consider hysterectomy as a mainstay in the treatment of placenta accreta. With the development of obstetric hemostasis and interventional surgery，and with the increase of patient's willingness to retain the uterus，conservative surgical treatments for placenta accreta have gained increasing popularity and acceptance all over the world and have shown more and more advantages. Of these，the "3- Procedure" surgery has been widely adopted，modified and promoted，and based on the conditions of hospital equipment and the experience of obstetricians，different methods have been used to block the uterine blood vessels， followed by partial placental-myometrium resection and uterine reconstruction. In this way， blood loss can be greatly reduced while the uterus could be， most likely，preserved， thereby avoiding hysterectomy and related adverse effects.