目的　对 43例采用显微接管术修复的急性或陈旧性外伤性下泪小管断裂的病例进行疗效分析。方法　在手术显微镜下 ,从伤口处寻找下泪小管的鼻侧断端 ,将硅胶条经泪小管插至鼻腔中 ,修复泪小管。结果　 43例下泪小管断裂患者进行显微接管修复术的成功率为 90 .7% ,其中 4例因术后硅胶条脱落 ,重新进行其他修复术。结论　对于急性病例应早期进行手术修复。陈旧性下泪小管断裂行显微接管修复手术成功的关键是寻找下泪小管断端。硅胶条是较为理想的支撑物 ,有利于管壁愈合且能避免管腔狭窄。 Objective To analyze the curative effect of 43 cases of acute or old traumatic lacrimal canaliculus rupture repaired by micro-canalization. Methods Under the operation microscope, look for the nasal end of the lacrimal canaliculus from the wound, insert the silicone strip into the nasal cavity through the canaliculus and repair the lacrimal canaliculus. Results The successful rate of microsurgical repair in 43 cases of lacrimal canaliculi rupture was 90.7%, of which 4 cases were repaired due to the shedding of silicone strips. Conclusion For acute cases should be early surgical repair. The key to the success of microsurgical repair of an old tear ductus tubule rupture is to look for the end of the lacrimal canaliculus. Silica gel strip is an ideal supporter, which will help to heal the wall and avoid stenosis.