Automatic warehouse for storing loading units, comprising: a support structure defining a plurality of levels, superimposed on each other, each comprising a corridor and a plurality of lanes, which cross said corridor and communicate with said corridor, along which the loading units are stored, at least one entry/exit area (7, 8) of the loading units, and at least one elevator (20, 21) for transporting the loading units from the floor height up to heights corresponding to each of said levels, and vice versa, said elevator (20, 21) comprising a movable platform provided with at least one housing (24, 25) to contain at least one loading unit, and loading/unloading means of the loading units to/from said housing (24, 25), and a plurality of vehicles (39, 40), movable along said corridor and said lanes, for moving the loading units within each of said levels, wherein said vehicles (39, 40) comprise a plurality of satellites for transporting, depositing and picking the load units along said lanes of each of said levels, each of said corridors comprising standby areas (48, 49) of the loading units, provided in proximity to said elevator (20, 21), for temporarily depositing the loading units before these are picked by said elevator (20, 21) or before being picked by one of said vehicles (39, 40) and then transferred to a specific destination lane, characterized in that each of said standby areas (48, 49) comprises two respective parallel and mirrored conformed profiles, wherein each of said profiles defines an upper surface and a lower surface, and wherein said upper surface is configured to allow the support of the loading units, and said lower surface is configured to allow the wheels of said satellites to roll, and in that said loading/unloading means comprise telescopic forks provided at each of said housings (24, 25), selectively movable so as to laterally project with respect to the lower portion of said movable platform. a support structure defining a plurality of levels, superimposed on each other, each comprising a corridor and a plurality of lanes, which cross said corridor and communicate with said corridor, along which the loading units are stored, at least one entry/exit area (7, 8) of the loading units, and at least one elevator (20, 21) for transporting the loading units from the floor height up to heights corresponding to each of said levels, and vice versa, said elevator (20, 21) comprising a movable platform provided with at least one housing (24, 25) to contain at least one loading unit, and loading/unloading means of the loading units to/from said housing (24, 25), and a plurality of vehicles (39, 40), movable along said corridor and said lanes, for moving the loading units within each of said levels, wherein said vehicles (39, 40) comprise a plurality of satellites for transporting, depositing and picking the load units along said lanes of each of said levels, each of said corridors comprising standby areas (48, 49) of the loading units, provided in proximity to said elevator (20, 21), for temporarily depositing the loading units before these are picked by said elevator (20, 21) or before being picked by one of said vehicles (39, 40) and then transferred to a specific destination lane, characterized in that each of said standby areas (48, 49) comprises two respective parallel and mirrored conformed profiles, wherein each of said profiles defines an upper surface and a lower surface, and wherein said upper surface is configured to allow the support of the loading units, and said lower surface is configured to allow the wheels of said satellites to roll, and in that said loading/unloading means comprise telescopic forks provided at each of said housings (24, 25), selectively movable so as to laterally project with respect to the lower portion of said movable platform.