A sheet holder (1, 101, 201, 301) configured to hold a sheet while a plotter is processing the sheet in a feeding direction perpendicular to a moving direction of a plotter carriage; comprising: a sheet-shaped base material (2, 102, 202, 302) to be fed in use in the feeding direction; having an adhesive applied region (2a, 302a) and an adhesive non-applied region, and a plurality of adhesive dot lines each formed of a plurality of adhesive dots (3, 103, 303) which are formed on the upper surface of the base material (2, 102, 202, 302) and which are arranged side by side along the feeding direction, wherein the plurality of adhesive dot lines are formed to be arranged side by side in the moving direction, and a formation position of each of the adhesive dots (3, 103, 303) forming one of two of the adhesive dot lines adjoining each other and a formation position of each of the adhesive dots (3, 103, 303) forming an other of two of the adhesive dot lines adjoining each other are different in the feeding direction; wherein dot arrangement common to the one of two of the adjoining adhesive dot lines and dot arrangement common to the other of two of the adjoining adhesive dot lines are made such that the one of two of the adjoining adhesive dot lines and the other of two of the adjoining adhesive dot lines are alternately arranged at predetermined intervals in the moving direction, wherein each of the adhesive dot line (4a, 4b) is configured so that the adhesive dots (3, 103, 303) are arranged at predetermined intervals in the feeding direction, and wherein a distance between two of the adjoining adhesive dot lines (4a, 4b) in the moving direction is shorter than a distance between the adhesive dots (3, 103, 303) forming each of the adhesive dot lines (4a, 4b) in the feeding direction, characterised in that the sheet shaped base material (2, 102, 202, 302) comprises an arrow mark indicating the setting direction of the sheet that is printed at one end part of the adhesive non-applied region in the sheet feeding direction, said arrow pointing perpendicular to an edge of the sheet holder (1, 101, 201, 301). a sheet-shaped base material (2, 102, 202, 302) to be fed in use in the feeding direction; having an adhesive applied region (2a, 302a) and an adhesive non-applied region, and a plurality of adhesive dot lines each formed of a plurality of adhesive dots (3, 103, 303) which are formed on the upper surface of the base material (2, 102, 202, 302) and which are arranged side by side along the feeding direction, wherein the plurality of adhesive dot lines are formed to be arranged side by side in the moving direction, and a formation position of each of the adhesive dots (3, 103, 303) forming one of two of the adhesive dot lines adjoining each other and a formation position of each of the adhesive dots (3, 103, 303) forming an other of two of the adhesive dot lines adjoining each other are different in the feeding direction; wherein dot arrangement common to the one of two of the adjoining adhesive dot lines and dot arrangement common to the other of two of the adjoining adhesive dot lines are made such that the one of two of the adjoining adhesive dot lines and the other of two of the adjoining adhesive dot lines are alternately arranged at predetermined intervals in the moving direction, wherein each of the adhesive dot line (4a, 4b) is configured so that the adhesive dots (3, 103, 303) are arranged at predetermined intervals in the feeding direction, and wherein a distance between two of the adjoining adhesive dot lines (4a, 4b) in the moving direction is shorter than a distance between the adhesive dots (3, 103, 303) forming each of the adhesive dot lines (4a, 4b) in the feeding direction, characterised in that the sheet shaped base material (2, 102, 202, 302) comprises an arrow mark indicating the setting direction of the sheet that is printed at one end part of the adhesive non-applied region in the sheet feeding direction, said arrow pointing perpendicular to an edge of the sheet holder (1, 101, 201, 301).