Abstract: Device for the transport and distribution of meal trays including built-in microwave oven for reheating the latter. The device consists of an isothermic unequipped trolley for transporting food trays between kitchens and hospital wards, a central equipped unit permanently installed in hospitals, capable of having one or two transport trolleys coupled to it to form mobile distribution units, and one or two microwave ovens built into the central unit, comprising a metallic shield located between the hot and cold areas, which enables meal trays without a shield to be used. For use in the distribution of individual meal trays in establishments such as hospitals.