Caesarean scar pregnancy (CSP) is a pregnancy in which the pregnant egg is implanted in the uterine scar after cesarean delivery, and is a special type of ectopic pregnancy. In the last decade or so, the incidence of CSP has increased significantly due to an increase in the number of cesarean deliveries and improved diagnostic techniques. It is now recognized as an ectopic pregnancy located outside the body of the uterus. Because of the weak muscle wall and fibrous tissue in this scar, the pregnancy is prone to serious complications such as uterine rupture and hemorrhage, and may even lead to hysterectomy, which can seriously endanger the life of the patient. Once CSP is diagnosed, active treatment should be started as soon as possible. The principles of treatment are early detection, early treatment, reducing complications, and avoiding expectant treatment and blind scraping. The goals of treatment are to terminate the pregnancy, remove the lesion, and ensure the safety of the patient. There are no uniform treatment protocols, and CSP, as a specific type of ectopic pregnancy with chorionic villus or placental implantation at the scar, carries a high potential risk. Even if the embryo stops developing, the lesion remains lingering and difficult to remove. Removal of the lesion by curettage or hysteroscopic electrosurgery is very traumatic and often causes hemorrhage, uterine rupture or even hysterectomy, which can cause loss of fertility and seriously affect the quality of life of some women. In addition, repeated curettage can lead to uterine adhesions, menorrhagia, infertility and miscarriage, which seriously affects women’s reproductive health and increases medical costs. The conservative treatment of Chinese medicine to remove scar pregnancy lesions can kill embryos, reduce bleeding, shorten the course of the disease, promote the absorption or discharge of lesions, avoid surgical trauma and hysterectomy, protect the uterus and reproductive function, and has great social and economic benefits, with promising applications, and is worthy of clinical promotion and application.