To provide an electrophotographic photoreceptor which formes a photosensitive layer via the anode oxide film on the surface of a conductive base, and has a grounding plate with projections, to stably and reliably connect to the conductive base, without providing the step of removing or peeling the anode oxide film on the inner surface of the base.

This electrophotographic photoreceptor has a resin flange which has a grounding plate. This flange has projections which are formed on the outer surface of a conductive elastic object with two or more sharp tips overlapping each other, as seen in a press-in direction, so the they are pressed in by sliding on the same line on the inner surface of the above cylindrical base and are separated from each another, as seen in the direction of crossing the press-in direction.