An endoscope includes an insertion portion formed in an elongated cylindrical shape and a cylindrical shaped image pickup adaptor, the pickup adaptor comprising, an electric device arranged on the distal end side thereof, and a proximal end side of the image pickup adaptor being attached to and removed from the distal end side of the insertion portion, wherein a pair of adaptor side electrode terminals conducting with the electric device are arranged on the image pickup adaptor, and a pair of insertion portion side electrode terminals that respectively come into contact with and are electrically connected to the pair of adaptor side electrode terminals, are arranged on the insertion portion so as to respectively face, and be able to come in contact with, the pair of adaptor side electrode terminals, when the image pickup adaptor is attached to the insertion portion.
