Objective To investigate the effect of shortened fasting time before Caesarean section on delivery outcomes of women with gestational diabetes mellitus (GDM). Methods A total of 100 GDM cases were divided into 2 groups of 55 each according to admission orders.The control group were subjected to an 8h no food and 6h no drink fasting regimen while the observation group to a 6h no food and 2h no drink regimen, before Caesarean section. Results The level of fasting blood glucose in the observation group was significantly different from that in the control group (P＜0.01).The blood loss volume during the procedure was less and the time to gas passage was shorter in the observation group than in the control group (P＜0.05 for both).Blood glucose of the newborns in the former was higher, and incidence rate of hypoglycemia was lower, than those of the latter group (P＜0.05 for both).The levels of thirst, hunger and anxiety in the observation group were significantly milder than those in the control group (P＜0.05 for all). Conclusion The 6h no food and 2h no drink fasting regimen before Caesarean section can stabilize blood glucose level of GDM women, reduce incidence rates of preoperative hypoglycemia and neonatal hypoglycemia,improve maternal comfort, and promote postoperative physical recovery.