Abstract: Objective:To systematically evaluate the clinical efficacy of intermittent pneumatic compression(IPC) in preventing deep vein thrombosis(DVT) of postoperative patients.Methods:Databases including Cochrane library,PubMed,Embase,International Network of Agencies for Health Technology Assessment(INAHTA),Chinese National Knowledge Infrastructure(CNKI),Wanfang Data and VIP were used to collect papers which accord with the inclusive criteria published on January 1st,1990 to May 10th,2015.Papers related to randomized control trial were undertaken quality assessment by Cochrane Handbook 5.3,and those systematic evaluation and health technology assessment ones were extracted results directly.Results:The effect of IPC on preventing DVT of postoperative patients is obvious,but there was no accordant conclusion compared with the preventing effects of elastic stocking and drugs.The effect of IPC combined with drugs on preventing DVT was better than that of single use of drugs or IPC.Conclusions:The effect of useing IPC only and using IPC combined with drugs on preventing DVT is both obvious.IPC can be used as an alternative therapy of drugs to prevent DVT to some extent.