Objective To evaluate MRI findings and diagnosis value in the early diagnosis of cesarean scar pregnancy(CSPs). Methods The MRI manifestations of 10 cases which were diagnosed as CSPs on the basis of surgery and pathology were retrospectively analyzed. Results Among 10 patients all had been underwent surgery. 9 cases were definitely diagnosed by MRI and misdiagnosed in 1 cases as trophoblastic disease. All the lesions were located in the anterior inferior wall of uterus, and showed rounded or round-like shapes, 8 cases belonged to Gestational sac type and 2 seemed like mixed masses with long T1 and long T2 heterogeneous signal. 6 cases of gestation sac grew into the uterine cavity mainly, and embedded in the uterine wall superficially and had clear margin with the local uterine muscular layer. 4 cases of gestation sac embedded in the deep area of scar, grew mainly toward the uterine muscular layer and protruded out of the uterine outline, the muscular layer at the lesion became thin. All 10 patients received DWI and showed ring-like or heterogeneous hyperintensity. Conclusion The MRI features of uterine cesarean scar were specific, which was useful to defining its clinical type and selection of operation.