A working vehicle with a speed maintaining apparatus having a plurality of wheels including at least one driven wheel; a vehicle body supported by the plurality of wheels; an engine supported by the vehicle body; a stepless transmission driven by the engine and capable of changing speed of power to the driven wheel; a neutral return device for biasing the stepless transmission toward a neutral position; a change speed pedal operatively connected to the stepless transmission; a speed maintaining device for maintaining the stepless transmission in a desired speed position; a speed setting lever movable to a retreat position and to positions in a forward speed range for setting the stepless transmission to the desired speed position in which the stepless transmission is maintained by the speed maintaining device; a relay rocking element connected to the stepless transmission through an auxiliary rocking element pivotable relative to the relay rocking element; and a control member provided in the speed maintaining device to be movable with the speed setting lever.