In the present invention, provided can be a developing roller through which neither fog nor contamination inside the apparatus is generated, and no insufficient image density is produced, even though printing a large number of paper sheets (5000 paper sheets, for example). Also disclosed is a developing roller possessing a conductive shaft and a coating layer provided on an outer circumference of the conductive shaft, wherein the coating layer possesses a resin and a surface roughness particle, and the coating layer surface has a surface roughness Ra of 0.5-2.5 μm and a Young's modulus Y of 1-200 MPa.