Abstract: An operation device according to the present invention includes a touch-sensitive operation surface placed in a vehicle and a detecting unit configured to detect touch operation by an operator on the touch-sensitive operation surface. On the touch-sensitive operation surface, a guide part having a convex shape or a concave shape and a planar operation part to be an operation location having a planar shape located around the guide part are formed. The detecting unit is configured to detect slide operation on the guide part from the planar operation part, and accept later operation on a predetermined operation location as an operation instruction set in accordance with a status of the slide operation on the guide part.