A conductive member including a conductive supporting body (1), an electric resistance adjusting layer (2) formed on the conductive supporting body (1), and space holding members (3, 3) provided on opposite ends of the electric resistance adjusting layer (2), at least one engaging projection (50, 60,70, 80) being provided on one of the electric resistance adjusting layer (2) and each of the space holding members (3, 3), and an engaging opening (51, 61, 71, 81) in which the engaging projection is inserted being provided in the other of the electric resistance adjusting layer (2) and each of the space holding members (3, 3).