An operation lever is rotatable in a vertical rotation direction about a vertical rotation shaft and rotatable in a front-rear rotation direction about a front-rear rotation shaft non-parallel to the vertical rotation shaft. An urging portion urges the operation lever to move to a predetermined initial position. A neutral cam portion rotates following a rotation of the operation lever in the vertical rotation direction; a forward/backward cam portion rotates following a rotation of the operation lever in the front-rear rotation direction; a neutral switch portion is pressed by the neutral cam portion and detects the pressing in a state where the neutral cam portion is rotated to a neutral pressing position; and a forward/backward switch portion is pressed by the forward/backward cam portion and detects the pressing in a state where the forward/backward cam portion is rotated to a forward pressing position or a backward pressing position.