A driving simulation device for executing a simulating game includes a mounting frame and a seat body. The seat body has a coupling portion and a seating portion located above the coupling portion. The seat body further includes first and second connecting rods having at least two fixing parts journaled to the mounting frame, two swinging parts journaled to the coupling portion of the seat body and two coupling parts interconnecting the fixing parts and the swinging parts and transversely crossing each other. Once a rider is seated on the seating portion and swings the seat body so as to simulate a driving action, the seating portion and the coupling portion swing respectively in two directions opposite to each other, and thereby a swinging center of the seat body can fall between the coupling portion and the seating portion.