PURPOSE: To obtain a vessel body landing device which can execute the landing preparation of the vessel body in simple and speedy manner and execute the landing of the vessel body safely by fixing the fixed part of the device in demountable manner to a vessel mooring pillar at a pier in a harbor and operating a driving means.

CONSTITUTION: A fixed part 2 is fixed on a vessel mooring pillar 8 at the pier 7 of a harbor so that a supporting pillar 3 is positioned on the waiting side of a vessel body 1, and after a supporting rod 4 is inclined by a tilt adjusting member 16, and the top edge is adjusted to obtain the projection by a prescribed quantity to the sea side, the engaging member 21 of a landing cable 5 is engaged with a hoisting cable 22 for the vessel body 1, and the preparation for hoisting work is completed. Then, the wheel 32 of a vehicle 31 is loaded on the rollers 38 and 39 of a landing means 6, and the wheel 32 is revolved, and then a hydraulic pump 34 is driven by the revolution of the roller 38, and a prescribed pressure is generated. A direction control valve 35 is operated by a selecting switch 47, and a cable drum 30 is revolved. Then, the vessel body 1 is floated by the cable 5, and when the supporting rod 4 is turned to the sea side, the vessel body 1 corresponds to the sea, and when the drum 30 is revolved so as to drive out the cable 5, the vessel body 1 is lowered and landed on the sea.