An operation device capable of switching operation of a transmission of a work vehicle, comprising: an operation lever that is rotatable in a first rotation direction about a first rotation shaft and rotatable in a second rotation direction about a second rotation shaft non-parallel to the first rotation shaft; an urging portion that urges the operation lever to move to a predetermined initial position; a first cam portion that rotates following a rotation of the operation lever in the first rotation direction; a second cam portion that rotates following a rotation of the operation lever in the second rotation direction; a first switch portion that is pressed by the first cam portion and detects the pressing in a state where the first cam portion is rotated to a predetermined position; and a second switch portion that is pressed by the second cam portion and detects the pressing in a state where the second cam portion is rotated to a predetermined position, wherein the operation lever is movable to a plurality of operation positions, the operation device characterised in that: a movement holding portion that moves the operation lever to the initial position when the operation lever is positioned at a first operation position among the plurality of operation positions and holds the operation lever in a state where the operation lever is positioned at a second operation position when the operation lever is positioned at the second operation position, and wherein the movement holding portion includes an extendable portion that is provided on the operation lever and is expandable, and a recess that receives a tip portion of the extendable portion in an extension direction, the urging portion urges the extendable portion to extend such that the tip portion in the extension direction abuts on the recess, and the recess includes a first inclined portion that guides the extendable portion such that the operation lever positioned at the first operation position is moved to the initial position, and a second inclined portion that guides the extendable portion such that the operation lever positioned at the second operation position is held at the second operation position. an operation lever that is rotatable in a first rotation direction about a first rotation shaft and rotatable in a second rotation direction about a second rotation shaft non-parallel to the first rotation shaft; an urging portion that urges the operation lever to move to a predetermined initial position; a first cam portion that rotates following a rotation of the operation lever in the first rotation direction; a second cam portion that rotates following a rotation of the operation lever in the second rotation direction; a first switch portion that is pressed by the first cam portion and detects the pressing in a state where the first cam portion is rotated to a predetermined position; and a second switch portion that is pressed by the second cam portion and detects the pressing in a state where the second cam portion is rotated to a predetermined position, wherein the operation lever is movable to a plurality of operation positions, the operation device characterised in that: a movement holding portion that moves the operation lever to the initial position when the operation lever is positioned at a first operation position among the plurality of operation positions and holds the operation lever in a state where the operation lever is positioned at a second operation position when the operation lever is positioned at the second operation position, and wherein the movement holding portion includes an extendable portion that is provided on the operation lever and is expandable, and a recess that receives a tip portion of the extendable portion in an extension direction, an extendable portion that is provided on the operation lever and is expandable, and a recess that receives a tip portion of the extendable portion in an extension direction, the urging portion urges the extendable portion to extend such that the tip portion in the extension direction abuts on the recess, and the recess includes a first inclined portion that guides the extendable portion such that the operation lever positioned at the first operation position is moved to the initial position, and a second inclined portion that guides the extendable portion such that the operation lever positioned at the second operation position is held at the second operation position. a first inclined portion that guides the extendable portion such that the operation lever positioned at the first operation position is moved to the initial position, and a second inclined portion that guides the extendable portion such that the operation lever positioned at the second operation position is held at the second operation position.