Abstract: A folding collapsible power boat including a hull consisting of a forward hull section and an aft hull section longitudinally hinged together, two pairs of floats respectively bilaterally hinged to the forward hull section and the aft hull section and moved between the non-operative position, in which the floats are received inside the forward and aft hull sections, and the operative position, in which the floats are closely attached to two opposite sides of the forward and aft hull sections, and a stretcher unit having a cross bar inserted through a transverse groove between the forward and aft hull sections and two parallel tie rods joined by the cross bar and bridged over the floats to hold them in the operative position.