Abstract: Automatic storage plant (1) of pallets, comprising: a plurality of storage lanes (11, 21, 31) of pallets substantially parallel with one another and arranged on a plurality of levels; at least one transfer lane (10, 20) substantially perpendicular to said storage lanes (11, 21, 31); a pallet transport mother shuttle (2, 22) movable in said transfer lane (10, 20); a pallet transport shuttle (3) movable in said storage lanes (11, 21, 31) and positionable in said transport mother shuttle (2); said pallet transport shuttle (3) being provided with handling means and with power supply means of said handling means; said transport mother shuttle (2) comprising charging means (4) of the power supply means of said transport shuttle (3).