An endoscope apparatus including: an endoscope unit having: a lens units; a photographing unit for photographing an optical image picked up through the lens unit; and a lens unit driving motor for driving the lens unit for realizing at least one of a zoom function and a focus function; and a control unit having: an image processing circuit for processing an image signal output from the photographing unit, and for outputting the processed image signal to a monitor, wherein: at least one of the endoscope unit and the control unit comprises: a motor driving circuit for controlling the lens unit driving motor; and a motor control circuit for outputting a control signal that controls the motor driving circuit by detecting a switch signal generated by operation of a zoom switch or a focus switch.