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Objective: To assess the indication and safety of surgical resection of the pregnancy by hysterotomy (SRPH) and hysterectomy for cesarean scar pregnancy (CSP). Methods: A retrospective study of women with CSP was conducted at the Women's Hospital, School of Medicine, Zhejiang University, from Jan. 2003 to Mar. 2016. The women underwent SRPH (SRPH group, n =35) and hysterectomy (Hysterectomy group, n =14) were included. The gestational age (GA), size of gestational mass(GM), level of serum β-hCG, previous treatments and clinical outcomes were analyzed. Results: The median GA, the mean size of GM, median serum β-hCG level, median amount of blood loss, rate ot blood transfusion, rate of persistent CSP, and rate of motal status in SRPH group versus Hysterectomy group were 66 versus 84 days, (65±22) versus (92±36) mm, 23 755 versus 802 U/L, 400 versus 650 ml, 11% (4/35) versus 13/14, 49% (17/35) versus 12/14, 20% (7/35) versus 14/14, respectively (all P< 0.05). In SRPH group, median amount of blood loss was 500 ml in patients with GA≥10 weeks versus 300 ml in patients with GA<10 weeks ( P< 0.05). Serious complication occurred in 7 patients: severe pelvic inflammation in 1 patient and hematomas in the uterine isthmus in 1 patient in SRPH group; severe pelvic inflammation in 2 patients and hemorrhagic shock and DIC in 3 patients in Hysterectomy group. No blaader damage occurred. Conclusions: SRPH is effective and safe for patients with CSP with GA of 9-10 weeks, a diameter of 60-90 mm and stable hemodynamics. Hysterectomy is an alternative to SRPH for patiens in motal status with advanced GA more than 12 weeks.