目的　探讨血液净化技术在内科危重急症抢救中的作用。方法　回顾性总结 1987年以来我们应用血液净化技术抢救内科危重急症 675例患者的效果。结果　总抢救成功率达 89 5 % ( 60 4 / 675 )。其中急性肾功能衰竭、慢性肾功能衰竭合并严重并发症和其它非肾性内科危重急症的抢救成功率分别达 80 2 % ( 77/ 96)、92 3 % ( 4 70 / 5 0 9)、81 4 % ( 5 7/ 70 )。结论　血液净化技术在内科危重急症的抢救中有着十分重要的作用 ,但其具体实施要因人而异 ,重视综合治疗。 Objective To investigate the role of blood purification in the rescue of critical medical emergencies. Methods We retrospectively reviewed the effectiveness of blood purification in the rescue of 675 patients with medical emergencies since 1987. Results The total rescue success rate was 89.5% (60 4/675). The success rates of acute renal failure, chronic renal failure combined with serious complications and other non-renal internal medicine emergency rescue were 80 2% (77/96), 92 3% (4 70/599), 81 4% (57/7). Conclusion Blood purification technology plays a very important role in the rescue of critical medical emergencies, but its implementation should vary from person to person, with emphasis on comprehensive treatment.