An electric working vehicle, including a lawn mower, comprises: a body (100); a running motor (30) supplying driving force to at least one wheel (20, 21); a rotary-type blade (80); a blade motor (70); a battery (50); a first power converter (60) configured to convert the electric power from the battery into required electric power to supply it to the running motor; a second power converter (65) configured to convert the electric power from the battery into required electric power to supply it to the blade motor; and a controller (603, 653) configured to control at least power conversion operations of the first and second power converters, wherein as least the first power converter is able to operate regeneration, and the controller controls the second power converter in such a manner that regeneration electric power is supplied to the blade motor, depending on a charging condition of the battery.