Objective To explore the effects of extended mother-infant skin contact on improving blood sugar levels in newborns of mothers with diabetes mellitus(GDM),stabilizing body temperature,and promoting breast feeding.Meth-ods A total of 90 full-term newborns of diabetic pregnant women who gave birth naturally in Hangzhou Women's Hospi-tal from February to April 2023 were selected for this study.The newborns were randomly divided into an observation group(45 cases,90-min skin contact)and a control group(45 cases,30-min skin contact).The body temperature,blood glucose levels,and breastfeeding status of two groups were compared at birth,30 minutes,90 minutes,and 2 hours.Results The body temperature of newborns in the observation group were higher than that in the control group at 90 minutes and 2 hours of birth(P<0.05).The blood glucose levels of newborns in the observation group were also high-er than those in the control group at these times(P<0.05).The incidence of 2-hour hypoglycemia in the observation group was 2.22%(1/45),lower than the control group(15.56%,7/45),but the difference was not statistically signif-icant(x2=3.430,P>0.05).The success rate of the first breastfeeding,duration of sucking,and the breastfeeding scale scores of newborns in the observation group were higher than those in the control group(P<0.05).Conclusion Ninety minutes of mother-infant skin contact after birth for newborns of diabetic mothers is conducive to maintaining the stability of blood sugar and temperature of newborns,and promoting exclusive breastfeeding.