A sheet pasting device including: an elastically-deformable sheet support section that is provided with a flat surface, and supports a sheet-shaped substance in a state in which the sheet-shaped substance is pasted to the surface an extrusion member that is provided so as to be able to protrude from and retract into the surface of the sheet support section and a drive mechanism that causes the extrusion member to protrude from and retract into the surface.
