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目的：分析2012年10月～2014年10月宜宾市翠屏区玉泰外科妇产科专科医院确诊的310例孕晚期前置胎盘孕妇，分析其发病相关因素及预后。方法通过对2012年10月～2014年10月我院确诊的310例孕晚期前置胎盘的临床资料进行回顾性分析，研究患者流产次数、剖宫产次数、产前出血量、产后出血量、分娩情况及胎儿情况，对临床治疗提出指导性意见。结果中央性前置胎盘是其中出血量最大，边缘性前置胎盘患者在临床最为多见，本研究无1例行阴道分娩，患者剖宫产后新生儿均存活，其中边缘性前置胎盘发生胎儿宫内窘迫者较多。结论孕晚期前置胎盘较为凶险，坚持按孕期保健要求定时产检，可及时发现前置胎盘并治疗，可大大提高围产儿生存率。“,”Objective Analysis of 2012October~2014October diagnosedin Cuiping DistrictYutaisurgeryin obstetrics and gynecology hospital 310 cases oflate pregnancypregnant women with placenta previa,prognosis andthe related factors. MethodsBased on the2012October~2014Octobethe clinical data of 310cases oflate pregnancyplacenta previadiagnosed in our hospitalwere retrospectively analyzed,study in patients withabortion,and number of cesarean delivery ,prenatalhemorrhage,postpartum hemorrhage,laborconditions andthe fetus,raised guidancefor clinical treatment. Results Central placenta previais one ofthe largest amount ofbleeding,marginal placenta previapatientsin clinicalmost common,in this study,1patients withnonroutinevaginal delivery,cesarean section postpartumneonatal survival,themarginal placental previafetal distressmore. Conclusion The third trimesterplacenta previais dangerous,according tothe requirement of timingof prenatal careproduction inspection,can be found inplacenta previaandtimely treatment,can greatly improve theperinatalsurvival rate.