A switching device includes an operation lever capable of being turned in a first direction and in a second direction with respect to a neutral position, a first switch to detect a condition when the operation lever is moved to a first operation position, a second switch to detect a condition when the operation lever is moved to a second operation position symmetric to the first operation position, and a control unit to control a multistage function in a stepwise manner to switch operating states in a stepwise manner such that the condition of control of the multistage function is switched up in a stepwise manner based on a condition detected by the first switch and such that the condition of control of the multistage function is switched down in a stepwise manner based on a condition detected by the second switch.