This method for manufacturing a mould assembly 100 is provided with: a manufacturing step in which an original plate 10 having a protruded pattern 10A is used to manufacture a plurality of resin first moulds 20 having a recessed pattern 20A which has the inverse shape to the protruded pattern 10A of the original plate 10 an arrangement step in which the plurality of first moulds 20 are arranged on a first substrate 30 in a state in which the plurality of first moulds are separated from each other, and the recessed pattern surfaces of the first moulds 20 are in contact with the first substrate 30 a supply step in which an adhesive 40 is supplied to the spaces between the plurality of first moulds 20, and cured, and an additional adhesive 42 is subsequently supplied to the surfaces of the plurality of first moulds 20 opposite to the recessed pattern surfaces a bonding step in which the adhesive 42 is used to bond a second substrate 50 to the side of the surfaces of the plurality of first moulds 20 opposite to the recessed pattern surfaces and a substrate separation step in which, after the second substrate 50 has been bonded, the plurality of first moulds 20 and the first substrate 30 are separated.Linvention concerne un procédé de fabrication dun ensemble moule (100), qui comprend : une étape de fabrication à laquelle une plaque originale (10) comportant un motif en saillie (10A) est utilisée pour fabriquer une pluralité de premiers moules en résine (20) comportant un motif en creux (20A) qui présente la forme inverse du motif en saillie (10A) de la plaque originale (10) une étape dagencement à laquelle la pluralité de premiers moules (20) sont agencés sur un premier substrat (30) dans un état dans lequel la pluralité de premiers moules sont séparés lun de lautre et les surfaces à motif en creux des premiers moules (20) sont en contact avec le premier substrat (30) une étape dalimentation à laquelle un adhésif (40) est amené dans les espaces compris entre la plural
