To provide a chair equipped with caster devices, in which the wheel device is normally attached to the chair, whereby the casters can selectively be put in the normally operating condition according to necessity without replacing the basic members of the caster device installed in place.

A chair equipped with caster devices includes a seating part 10 and leg 11, wherein the caster devices 2 are installed on the bottom members of the leg 11, and according to the user's need, the casters 21 of these devices 2 can be set in the non-contacting condition. To set the non-contacting condition, a raising cover 30 is used to each caster device 2.