A printing apparatus that recognizes a location of a substrate, which is a printing target, and performs printing. The printing apparatus includes: a stage to which the substrate is mounted; a location recognition unit recognizing a location of the substrate mounted to the stage; and a printing unit disposed in an upper portion of the stage and coating a printing solution on the substrate, and the location recognition unit includes a plurality of alignment marks formed in the substrate and a camera photographing the alignment marks. The plurality of alignment marks are disposed to be rotationally symmetrical to each other with reference to the center of the substrate for the locations of the alignment marks to be the same even though the substrate is rotated by a predetermined angle with reference to the center of the substrate.