To provide a stand device improving degree of adhesion between a sucker and a sucked surface when a vacuum condition is forcibly created by pulling up a sucker center section under a state that the sucker is adhered on the sucked surface, and providing sure suction even if the sucked surface is bent in a convex shape.

The sucker 201 is formed out of elastic material. A sucker support shaft 202 is vertically erected at a center of an upper surface. A connection column 302 to which the sucker support shaft 202 is connected at a center thereof through an elastic body 401 is provided at a stand cover 301. A long hole shape through hole 204 in which a support shaft 403 is freely fitted and can move is formed on the sucker support shaft 202. A suction lock mechanism 404 providing lock by moving the support shaft 403 upward is connected to the support shaft 403. Lock is provided by pulling up the sucker support shaft 202 after pressing the center section of the sucker 201 on the sucked surface by the sucker support shaft 202.