Introduction: Neonatal diabetes is a rare and surprising diagnosis, with many complications and difficult management by the medical team. Objectives: Management of the diabetes mellitus new-born in our maternity. Matherial and methods:Analysis of one of the rare cases of diagnosed neonatal diabetes. Conclusions:Given the rarity of such cases, this event can guide the medical care team consisting of obstetricians, neonatologist and diabetes doctor to effective collaboration by protocol management of new-born with diabetes mellitus suspicion.