Abstract: This invention concerns a method and a corresponding apparatus for ordered supply of containers to an automatic machine, comprising following operating stages: preliminarily freely supplying containers into a plurality of trays borne by a first conveyor belt with vertical axis, in such a way as to create a single layer of loosely arranged containers in the trays with the longitudinal axis thereof oriented horizontally; subsequently detecting a position of each container of the single layer in the corresponding tray; picking up each container situated in the tray and subsequently releasing the container at a mouth of a relative inclined channel which is shaped such as to guide the container onto a corresponding underlying housing of a fixed plane, with the container resiting with a longitudinal axis thereof vertically arranged; subsequently translating a plurality of containers resting in the housings towards corresponding facing seatings associated to a second conveyor belt having a vertical axis; and finally