To provide an electric working vehicle that can easily perform switching to driving of a working machine by an engine when the residual electric energy of a battery for driving the working device is lowered while reflecting the intention of a worker.

The electric working vehicle includes: a working device mounted on a vehicle; an electric driving mechanism driving the working device; a battery 220 supplying power; a residual electric energy detecting means detecting residual electric energy of the battery; an engine 4; an engine driving mechanism 6 driving the working device; an information transmitting means 311 provided adjacently to an operation position at the external part of the vehicle and transmitting shortage of the residual electric energy of the battery; an engine drive start operation part 312 which is provided adjacently to the operation position and in which drive start operation by the engine is input by a worker; and a drive switching controlling means 320 starting the engine according to the input from the engine drive start operation part after the shortage of residual electric energy of the battery is transmitted by the information transmitting means and starting driving of the working device using the engine driving mechanism.