A working vehicle in accordance with the present invention is provided with an engine mounted on a front portion of a vehicle body frame constructing a traveling vehicle body, a backhoe arranged on a rear portion of the vehicle body frame, a mower device arranged below the vehicle frame, a seating detecting means detecting a seating of an operator in a control seat on the traveling vehicle body, an engine stop mechanism stopping the engine, and a shift control means for controlling so as to increase and decrease forward and backward moving speeds of the traveling vehicle body. Further, in consideration for a safety at a time of an excavating work by the backhoe, the structure is made such that the engine stop mechanism is actuated at a time of operating the shift control means in the case that the seating detecting means is in an on state, and the seating detecting means is retained to the on state regardless of the seating of an operator in the case that the control seat is directed backward.