This disclosure relates to a production method for a blade for electrophtographic devices, made of thermosetting type polyurethane, including the steps of mixing and stirring the liquid polyurethane prepolymer which is a raw material component for a thermosetting type polyurethane polymer and the liquid crosslinking agent, discharging the mixture thereof into a die having a concave cross section in a molding drum, (20) heating it via an endless belt (24) which is in contact with the outer peripheral face of the molding drum (20) and runs with the rotation of the drum (20) to continuously mold a banded blade molding (S) having a prescribed width, and cutting the blade molding by a prescribed length after cooling it down.