A work vehicle comprising: a link mechanism to be equipped with a work implement; a drive mechanism to drive the link mechanism to ascend and descend the work implement; a control lever to be operated to ascend and descend the work implement; a first displacement transmission mechanism linking the drive mechanism and the control lever to transmit a displacement of the control lever to the drive mechanism; an additional operational mechanism configured to operate the control lever at a location apart from a position of the control lever; and a second displacement transmission mechanism mechanically linking the additional operational mechanism and the control lever without interposing the first displacement transmission mechanism to shift the control lever in accordance with an operation of the additional operational mechanism, wherein the additional operational mechanism includes: a first rotational axis; a second rotational axis; a first engagement member mechanically connected to the control lever and rotatable around the first rotational axis in accordance with a movement of the control lever; an operational member slidable in an axial direction (D AX2) of the second rotational axis to be operated by an operator; a second engagement member slidable together with the operational member in the axial direction (D AX2) and rotatable around the second rotational axis, the second engagement member being configured to engage with the first engagement member to rotate the first engagement member; and an urging member to separate the second engagement member from the first engagement member in the axial direction (D AX2) so that the second engagement member does not engage with the first engagement member. a link mechanism to be equipped with a work implement; a drive mechanism to drive the link mechanism to ascend and descend the work implement; a control lever to be operated to ascend and descend the work implement; a first displacement transmission mechanism linking the drive mechanism and the control lever to transmit a displacement of the control lever to the drive mechanism; an additional operational mechanism configured to operate the control lever at a location apart from a position of the control lever; and a second displacement transmission mechanism mechanically linking the additional operational mechanism and the control lever without interposing the first displacement transmission mechanism to shift the control lever in accordance with an operation of the additional operational mechanism, wherein the additional operational mechanism includes: a first rotational axis; a second rotational axis; a first engagement member mechanically connected to the control lever and rotatable around the first rotational axis in accordance with a movement of the control lever; an operational member slidable in an axial direction (D AX2) of the second rotational axis to be operated by an operator; a second engagement member slidable together with the operational member in the axial direction (D AX2) and rotatable around the second rotational axis, the second engagement member being configured to engage with the first engagement member to rotate the first engagement member; and an urging member to separate the second engagement member from the first engagement member in the axial direction (D AX2) so that the second engagement member does not engage with the first engagement member. a first rotational axis; a second rotational axis; a first engagement member mechanically connected to the control lever and rotatable around the first rotational axis in accordance with a movement of the control lever; an operational member slidable in an axial direction (D AX2) of the second rotational axis to be operated by an operator; a second engagement member slidable together with the operational member in the axial direction (D AX2) and rotatable around the second rotational axis, the second engagement member being configured to engage with the first engagement member to rotate the first engagement member; and an urging member to separate the second engagement member from the first engagement member in the axial direction (D AX2) so that the second engagement member does not engage with the first engagement member.