Automatic painting robot system for the shell plating

An automatic painting robot system for a shell plate of vessel is provided to improve efficiency of painting works as well as vessel building works by excluding interference in space with other works which occurs around the vessel. An automatic painting robot system for a shell plate of vessel comprises: a movable carriage(10) which moves a vessel forward and backward through a driving motor(11) along a running rail(5) established on a deck(2) of the vessel; a hoist type lifting device(20) established on the movable carriage; a multi-phased telescopic structure(30) fixed on an output end of the hoist type lifting device; a painting robot(40); and a control part loaded on the movable carriage, which controls the movable carriage, the hoist type lifting device, the multi-phased telescopic structure and the painting robot.