drawings for reference the terms indicating construction elements of the present invention are named in consideration of the function of each element and thus should not be construed to limit the technical elements of the present invention fig1 is a flowchart schematically illustrating a method for printing a fabric or a leather product according to a first embodiment of the present invention fig2 is a cross sectional view illustrating a printed matter printed by the printing method of fig1 as illustrated in fig1 and 2 the fabric or the leather product may be printed through the following processes first a release transfer paper 10 is prepared and digital printing is performed on the release transfer paper 10 to form a digital print layer 20 s 100 here the release transfer paper 10 may be manufactured by flattening a surface thereof and then coating it with a silicon resin such that digital printing may be performed also the release transfer paper 10 may be manufactured by extruding a polyolefin resin on a paper sheet so that the paper sheet is coated with the polyolefin resin an acrylic based raw material for print is coated on the prepared release transfer paper 10 to allow digital printing to be smoothly performed and then the digital printing is performed thereon since the acrylic based raw material is easily dissolved in an oil ink and thus adhered with the ink digital printing may be smoothly performed also digital printing may realize a precise printing with high resolution by using an inkjet printer and digital oil ink having excellent light resistance at this time the printing operation is performed in required quantities with a design in which a pattern a color a size.