本文对白内障超声乳化手术中后囊破裂的发生及有关因素进行了分析。方法：统计白内障超声乳化手术９８１只眼（平均年龄６０９岁），按手术进程分别记录后囊破裂，玻璃体外溢发生的有关情况探讨。结果：发生后囊破裂者２７只眼（２７５％），合并玻璃体外溢者２４只眼（２４５％），其中与撕囊有关的后囊膜破损４只眼（１４８％），超声乳化过程中发生后囊破损１４只眼（５１９％），抽吸皮质２只眼（７４％），人工晶体植入造成后囊破损２只眼（７４％），囊袋脱位５只眼（１８５％）。结论：防止术中后囊破裂并提高处理能力，对于提高手术成功率和手术后效果非常重要。 In this paper, the incidence of posterior capsule rupture and related factors in cataract phacoemulsification were analyzed. Methods: 981 eyes (mean age 60.9 years) undergoing phacoemulsification were collected. The posterior capsular rupture and the occurrence of vitreous extravasation were recorded according to the surgical procedure. Results: 27 eyes (275%) had posterior capsular rupture and 24 eyes (245%) had vitreous extravasation. Among them, 4 eyes (148%) were associated with capsulorhexis, There were 14 eyes (519%) with posterior capsule damage, 2 eyes (74%) with aspirated cortex and 2 eyes (74%) with posterior capsule damaged by phacoemulsification. 5 cases of capsular dislocation (18  5%). Conclusion: Prevention of intraoperative posterior capsule rupture and improve the handling capacity, to improve the success rate of surgery and the effect of surgery is very important.