A method of manufacturing an image forming element which can reduce a manufacturing time and a manufacturing cost with a simplified manufacturing process, an image forming element manufactured by the method, and an image forming apparatus having the same. The method includes preparing a cylindrical image drum having at least one slot formed along a lengthwise direction, arranging a control board having a plurality of terminals inside the image drum such that the plurality of terminals are located in the slot, forming a photosensitive resin layer on an outer circumference of the image drum, processing the photosensitive resin layer to form a plurality of installation recesses along a circumference of the image drum in correspondence to the plurality of terminals and a plurality of connection holes to expose the terminals through an area of each of the installation recesses, and forming a plurality of ring electrodes in the installation recesses to connect to the plurality of terminals through the connection holes.