Objective To explore the effect of different insulin administration methods in gestational diabetes patients.Methods Clinical data of 90 patients with gestational diabetes treated in Jinjiang Hospital of Fujian Province(Shang-hai Sixth Hospital Fujian Hospital)from October 2022 to September 2023 were retrospectively selected,and divided into control group(n=45,subcutaneous insulin injection)and observation group(n=45,continuous insulin pump injec-tion)according to the way of administration.The blood glucose control effect and maternal and infant outcomes were compared between the two groups.Results After treatment,the blood glucose level of both groups was lower than be-fore treatment,and the observation group was lower than the control group,the differences were statistically significant(both P<0.05).Compared with the control group,the total incidence of adverse pregnancy outcomes and total neonatal adverse outcomes in the observation group were lower,and the differences were statistically significant(both P<0.05).Conclusion Patients with gestational diabetes mellitus treated with continuous injection of insulin pump have better glycemic level control and lower risk of adverse outcomes in both patients and newborns.