Abstract: OBJECTIVE To analyze the impact of reducing primipara episiotomy rate on Ⅲ ° laceration, infection and neonatal asphyxia, so as to provide a reference for clinical treatment. METHODS A total of 4641 puerperas in the hospital from May 2012 to May 2015 were selected for a retrospective analysis, grouped in three according their hospitalized year. The first group had 1550 puerperas from May 2012 to May 2013, and second group 1547 cases from Jun. 2013 to May 2014, third group 1544 cases from Jun. 2014 to May 2015. Perineum infection rates and neonatal asphyxia rates were under analysis and SPSS 18.0 was used to give statistic analysis. RESULTS The maternal episiotomy rates from three groups showed a declining trend year by year, and the difference was significant(P<0.05). The maternal perineal infection rates also declined gradually, and first group was 0.7%, which was higher than second and third group, 0.3% and 0.1%, and the difference was significant (P<0.05). The comparison between second group and third group had no significant difference. CONCLUSION The maternal episiotomy rates decreasing can help reducing maternal postpartum perineal infection rates, so episiotomy is not suggested given to primipara.