To dispense with a spacer for adjusting height of a car floor and easily execute the adjusting work by providing an adjusting device for height of the car floor using screw members on the floor face of the car.

The floor part construction of a car of an elevator is provided with a floor finish material 1 supported with the car floor frame 2 of a car frame 3, but for adjusting the floor height, a height adjusting part 6 constituted of a height adjusting part bolt 7 and a height adjusting part nut 8 is provided. Namely the height adjusting part 6 is fitted to the car floor frame 2 and a vibration isolating rubber 4, and when the height of the car floor face is adjusted, the height adjusting nut 8 is unfastened and the position of the height adjusting part bolt 7 is moved up and down. When the car floor face becomes to be desired height, the height adjusting part nut 8 is fastened to fix the height adjusting part bolt 7. By adjusting the height of the height adjusting part bolt 7 in this way, the height position of the upper face of the floor finish material 1 can be easily adjusted, and regulating workability can be improved.