Objective To establish the community sustainable nutrition management path of patients with gestational diabetes mellitus (GDM) and explore the effect in the tertiary prevention of GDM.Methods The number of pregnant women who delivered in the Jiangdong district of Ningbo city during January 2013 to December 2016 was 1 028.512 patients with GDM who delivered were enrolled in control group and 516 patients in study group.Prevalence rate of GDM,blood glucose,glycosylated hemoglobin (HbAlc),weight gain during pregnancy,pregnancy outcomes,satisfaction rate of blood glucose control were compared between two groups.Data was analyzed by SPSS 13.0 statistical software.Results Prevalence rate of GDM in study group was 7.69％,lower than control groupl 1.1％.Fasting blood glucose (FPG),1 hour blood glucose (1 h PG),macrosomia,low birth weight in study group were better than control group.Fetal distress,Intrauterine infection,Hydramnios,Amniotic fluid embolism,Placental abruption,pregnancy weight gain were similar in two groups.Conclusions The sustainable nutrition management path of the community has good effect in the tertiary prevention of gestational diabetes mellitus.