To provide an operating device that can set two control parameters concurrently.

The operating device 1 (or 2) includes: an operating panel 10 (or 11 and 20) that includes an operating surface extending in two dimensions; and a processing device 30 (or 31). The processing device sets two independent control parameters for controlling on-board instruments, concurrently on the basis of a two-dimensional position on the operating surface of the operating panel designated by user input such that a first control parameter is set in accordance with a position in a first axial direction on the operating surface and a second control parameter is set in accordance with a position in a second axial direction on the operating surface.