PURPOSE: To safely and quickly lift a floor board and improve the work efficiency for spreading the floor board by constituting a floor board hoisting tool with a hoisting tool main body stacking the floor,board and a vertically expandable coil spring and a flexible suspension member hoisting and supporting the hoisting tool main body,

CONSTITUTION: This floor board hoisting tool 3 is constituted with a hoisting tool main body 4 and a vertically expandable coil spring 6 and a flexible suspension member 7 connected via flexible suspension members 5 hoisting and supporting the hoisting tool main body 4. The hoisting tool main body 4 is fixed with a hoist section 9 and a pair of forks 10 in a nearly U-shape on the side view by a support member 8. The support member 8 is arranged with horizontal link members 12a, 12b between the uppermost sections and between the lowermost sections of a pair of stanchions 11 respectively. The hoist section 9 perpendicularly connected with a front wall 15 and both side walls 14 is provided incliningly in the slant direction to the opposite side to the support member 8 on the front side of the uppermost sections of a pair of stanchions 11.