Objective To assess the efficacy and safety of acupuncture versus western medicine in the treatment of parkinson disease. Methods Randomized controlled trials (RCTs) involving acupuncture versus western medicines in the treatment of parkinson disease were identified from CBM (1978 to 2008), VIP (1989 to 2008), Wanfang Database (1998 to 2008), CNKI (1979 to 2008), PubMed (1966 to 2008), EMbase (1980 to 2008), and The Cochrane Library (Issue 4, 2008). And some relevant journals were handsearched. Data were extracted and evaluated by two reviewers independently with a specially-designed extraction form. The Cochrane Collaboration’s RevMan 5.0.20 software was used for meta-analyses. Results A total of 13 trials involving 832 patients were included. The result of meta-analyses showed that the total effective rates of the acupuncture group or of the group of acupuncture plus Madopar were similar when compared with Madopar alone in Webster score. (1) The total effective rate: The total effective rate in acupuncture plus Madopar was similar when compared with Madopar alone in UPDRS score at Day 30 (RR=1.33, 95%CI 0.95 to 1.88) and Day 66 (RR=1.38, 95%CI 0.84 to 2.24), but there were significant differences between acupuncture plus Madopar and Madopar alone (RR=1.61, 95%CI (1.19 to 2.17) at Day 84. The total effective rate in acupuncture plus benserazide-levodopa was higher than benserazide-levodopa alone (RR=1.70, 95%CI 1.08 to 2.68) at Day 66. (2)Webster score: There were no significant differences between acupuncture and Madopar at Day 30 (WMD= –2.51, 95%CI –2.83 to –2.19) and at Day 63 (WMD= –2.48, 95%CI –3.01 to –1.95). There were significant differences between acupuncture plus Madopar and Madopar alone at Day 30 (WMD= –13.48, 95%CI –15.35 to –11.61), but not at Day 42 (WMD= 0.50, 95%CI –1.22 to 2.22). (3) UPDRS score: There were no significant differences between acupuncture and Madopar at Day 60 (WMD= –7.19, 95%CI –14.49 to 0.11). There were significant differences between acupuncture plus Madopar and Madopar alone at Day 30 (WMD= 7.07 and 95%CI 2.95 to 11.19) and at Day 84 (WMD= –12.49,95%CI –16.75 to –8.23), but no significant differences were found at Day 66 and Day 33 (WMD= –14.90, 95%CI –31.89 to 2.09; WMD= –8.60, 95%CI –21.51 to 4.31).But there were statistical differences between acupuncture plus Madopar and Madopar alone at Day 30 (WMD= 7.07, 95%CI 2.95 to 11.19). There were no differences between acupuncture plus benserazide-levodopa and benserazide-levodopa alone at Day 66 (WMD=-10.80,95%CI-21.78 to 0.18) and at Day 33 (WMD=-15.60,95%CI-28.38 to -2.82). (4) Adverse reaction: Three trials reported adverse reactions including dizziness, heartbeat acceleration, slight mouth drying and nausea, but all of these were relieved or disappeared in the course of treatment. Conclusion Acupuncture is safe and effective in the treatment of parkinson disease. Acupuncture plus western drugs may be superior to western drugs alone. Because of the defects in the methodological quality of the included trials, the conclusion is to be confirmed by more high-quality RCTs.