Provided is a turntable device for spin-coating a substrate having a central hole formed in the central portion thereof with an external coating material due to a centrifugal force by rotating the substrate. The turntable device includes: a support unit having a flat surface that has at least one vacuum hole which supply vacuum force to the substrate for fixedly supporting the substrate on the horizontal surface; an elastic body disposed at the center of the support unit to be inserted into the central hole of the substrate that is fixedly supported on the surface of the support unit, and closing the central hole by being elastically deformed due to an external force; and a pressing member disposed on the elastic body and pressing the elastic body to deform the elastic body elastically. Since an additional element for closing the central hole of the substrate during spin-coating is not required, the apparatus is simple, the coating process is simple, and the central portion of the substrate is prevented from being contaminated after the spin-coating. |