Method for preparing of membrane of reclaimed ion exchange resin

A method for forming a recycled ion exchange resin membrane is provided to obtain an ion exchange resin membrane for simple water purification, which removes salt from sea water. The method for forming a recycled ion exchange resin membrane comprises the steps of: providing an acetone solution in which cellulose acetate is dissolved; mixing the acetone solution with powder of a waste cation exchange resin and a waste anion exchange resin to provide a recycled ion exchange resin solution; and forming a recycled ion exchange resin membrane from the recycled ion exchange resin solution by using a flat plate or a cylindrical container.