PROBLEM TO BE SOLVED: To provide a manufacturing method of a perforated sheet in which the perforated sheet having apertures of a desired shape can readily be manufactured without being affected by physical properties of materials of the sheet so much while suppressing waste of the materials.SOLUTION: A manufacturing method of a perforated sheet of the present invention is the manufacturing method of the perforated sheet having multiple apertures, and comprises: a cutting step of cutting a belt-shaped original fabric sheet 1 along a longitudinal direction so as to generate cutting lines 2 swinging by a predetermined pattern in the width direction, and obtaining three or more strip-like sheets 3 with irregular shapes provided in the side edge generated by the cutting a rearrangement step of adjusting a mutual positional relationship of the obtained strip-like sheet 3 in the longitudinal direction, and performing rearrangement so that protrusions 31 of side edges of adjacent strip-like sheets 3A, 3B may be overlapped to each other and a bonding step of bonding the rearranged strip-like sheets 3A, 3B to each other in the overlapped part 52 where the protrusions 31 are overlapped to each other, and obtaining the perforated sheet forming the apertures 51 with a portion where recesses 32 are overlapped to each other.
