Objective: To evaluate the effectiveness of manual vacuum aspiration (MVA).  Methods:  We searched med-ical databases including CBMdisc (1978-2014), CNKI (1979-2014), Wanfang Database (1982-2014), VIP Database (1989-2014), PubMed (1966-2014), Cochrane Library by compute and manually searched other related journals to screen randomized controlled trials (RCT) that involved in the comparison of MVA and Electric vacuum aspiration (EVA). The quality of included trials was assessed. RevMan5.0 software was used for meta-analysis. Results: Five trials were included, in which 3 RCTs were graded B and 2 were graded C. There were no significant differences in complete abortion rate, incomplete abortion rate and abortion failure rate ［RR (95%CI) values were 1.00（0.99，1.01），1.18（0.38,3.64），1.02（0.06,16.18), respectively］between MVA and EVA. Conclusion: Based on current best evidences, MVA has the similar effectiveness to EVA，even though lacking of high quality articles.