An engine emergency stop device of a work vehicle comprising: a stop lever provided inside a hood and switchable between an operational position for allowing an operation of the engine and an operation stopping position for stopping an operation of the engine; an operational device configured to automatically operate the stop lever to the operation stopping position in response to an operation of a key switch to an OFF position; a stop command operational tool provided separately of the key switch and outside the hood; and a stop operational mechanism configured to communicate a stop command by the stop command operational tool to the stop lever separately of the operational device; wherein the stop operational mechanism includes a starting end operational portion for transmitting an operational force along an operational direction of the stop command operational tool, a terminal end operational portion for transmitting the operational force of the stop command operational tool along an operational direction of the stop lever and an intermediate connecting portion connecting the starting end operational portion with the terminal end operational portion; and wherein the intermediate connecting portion is configured to compensate for a gap between the starting end operational portion and the terminal end operational portion in the operational direction or the operational position to operate the terminal end operational portion toward the engine stopping side in association with an operation of the starting end operational portion toward the engine stopping side; characterised in that the stop operational mechanism includes a first rod as the starting end operational portion, a second rod as the terminal end portion and a pivot link member connecting the first rod with the second rod; wherein one end portion of the first rod is connected to an operational knob of the stop command operational tool; and wherein one end portion of the second rod is connected to the stop lever; and wherein the first rod being bent in the form of a crank; and wherein the intermediate connecting portion comprises a first intermediate connecting portion (7m1) and a second intermediate connecting portion (7m2); wherein the first intermediate connecting portion (7m1) is provided in the bent portion bridging between a first starting end operational portion (7s1) and a second starting end operational portion (7s2) of the first rod; and wherein the pivot link member is forming the second intermediate connecting portion (7m2). a stop lever provided inside a hood and switchable between an operational position for allowing an operation of the engine and an operation stopping position for stopping an operation of the engine; an operational device configured to automatically operate the stop lever to the operation stopping position in response to an operation of a key switch to an OFF position; a stop command operational tool provided separately of the key switch and outside the hood; and a stop operational mechanism configured to communicate a stop command by the stop command operational tool to the stop lever separately of the operational device; wherein the stop operational mechanism includes a starting end operational portion for transmitting an operational force along an operational direction of the stop command operational tool, a terminal end operational portion for transmitting the operational force of the stop command operational tool along an operational direction of the stop lever and an intermediate connecting portion connecting the starting end operational portion with the terminal end operational portion; and wherein the intermediate connecting portion is configured to compensate for a gap between the starting end operational portion and the terminal end operational portion in the operational direction or the operational position to operate the terminal end operational portion toward the engine stopping side in association with an operation of the starting end operational portion toward the engine stopping side; characterised in that the stop operational mechanism includes a first rod as the starting end operational portion, a second rod as the terminal end portion and a pivot link member connecting the first rod with the second rod; wherein one end portion of the first rod is connected to an operational knob of the stop command operational tool; and wherein one end portion of the second rod is connected to the stop lever; and wherein the first rod being bent in the form of a crank; and wherein the intermediate connecting portion comprises a first intermediate connecting portion (7m1) and a second intermediate connecting portion (7m2); wherein the first intermediate connecting portion (7m1) is provided in the bent portion bridging between a first starting end operational portion (7s1) and a second starting end operational portion (7s2) of the first rod; and wherein the pivot link member is forming the second intermediate connecting portion (7m2).