Gestational diabetes mellitus (GDM) is an increasingly condition in medical practice. In the absence of an effective therapeutic management, it can lead to significant maternal and neonatal complications with adverse health effects. Reducing the risk of morbidity is the goal achived by screening of all pregnant women and active involvement of health care staff and early medical intervention in case of detection of GDM. The aim of this review is to present the nowadays strategy of GDM approach. The management challenge is to maintain blood glucose levels within the targets recommended by current guidelines, which are in relatively narrow ranges. Nutritional intervention and lifestyle changes are of primary importance. If necessary insulin therapy is initiated, insulin analogues are preferable due to lower risk of hypoglycemia. Oral antidiabetics are not recommended in pregnancy, even if they are used in certain circumstances.