An operating mechanism of a work vehicle comprising: an operating portion that is provided to a console disposed beside a seat and can be operated by an operator; and a switching portion capable of switching between a used state in which the operating portion can be used and a non-used state in which the operating portion cannot be used; a transmitting portion that transmits a motion to a predetermined device, wherein the switching portion couples the operating portion to the transmitting portion such that the operating portion can rock, switches to the used state by restricting rocking of the operating portion with respect to the transmitting portion and enabling the transmitting portion to move in conjunction with operation of the operating portion, and switches to the non-used state by allowing the rocking of the operating portion with respect to the transmitting portion and rocking the operating portion to a predetermined position; and wherein the switching portion includes: a first member fixed to the transmitting portion, a second member fixed to the operating portion, a coupling portion that couples the first member and the second member such that the first member and the second member can rock, and a restricting member that can restrict rocking of the second member with respect to the first member by being fitted over the first member and the second member in a state in which the second member rocks to a predetermined position with respect to the first member. an operating portion that is provided to a console disposed beside a seat and can be operated by an operator; and a switching portion capable of switching between a used state in which the operating portion can be used and a non-used state in which the operating portion cannot be used; a transmitting portion that transmits a motion to a predetermined device, wherein the switching portion couples the operating portion to the transmitting portion such that the operating portion can rock, switches to the used state by restricting rocking of the operating portion with respect to the transmitting portion and enabling the transmitting portion to move in conjunction with operation of the operating portion, and switches to the non-used state by allowing the rocking of the operating portion with respect to the transmitting portion and rocking the operating portion to a predetermined position; and wherein the switching portion includes: a first member fixed to the transmitting portion, a second member fixed to the operating portion, a coupling portion that couples the first member and the second member such that the first member and the second member can rock, and a restricting member that can restrict rocking of the second member with respect to the first member by being fitted over the first member and the second member in a state in which the second member rocks to a predetermined position with respect to the first member. a first member fixed to the transmitting portion, a second member fixed to the operating portion, a coupling portion that couples the first member and the second member such that the first member and the second member can rock, and a restricting member that can restrict rocking of the second member with respect to the first member by being fitted over the first member and the second member in a state in which the second member rocks to a predetermined position with respect to the first member.