Objective      To analyze the relationship between the time for non-medical indication cesarean section and neonatal outcomes.       Methods      Clinical data of 2 668 cases of non-medical indication cesarean section from December 2007 to December 2013 in the Southwest Hospital of Third Military Medical University were retrospectively analyzed. According to the cesarean section time

the cases were divided into 4 groups: group A: 38 weeksgestational age≥37 weeks

253 cases; group B: 39 weeks＞gestational age≥38 weeks

1 268 cases; group C: 40 weeksgestational age≥39 weeks

815 cases; and group D: 41 weeks＞gestational age≥40 weeks

332 cases. The neonatal outcomes were analyzed with software SPSS 17.0.       Results      Group C had the lowest incidence of neonatal adverse events among the 4 groups. Comparing group C with other groups

the differences in the incidence of neonatal respiratory system disease

  incidence of neonatal hypoglycemia

and rate of neonatal intensive care unit (NICU) hospitalization were statistically significant (P0.05).       Conclusion      Gestational age between 39 and 40 weeks is the best time for cesarean section in non-medical indication cesarean.