The purpose of the present invention is to provide a manufacturing method for an emitter that has a plurality of ridges constituting a wedge wire structure, the method making it possible to manufacture the plurality of ridges without forcibly pulling out the ridges. The foregoing is achieved by a manufacturing method for an emitter that includes a water intake part for taking in an irrigation liquid, a discharge part capable of discharging the irrigation liquid, and a flow path connecting the water intake part and the discharge part and circulating the irrigation liquid, the water intake part having a screen part with a wedge wire structure in which a plurality of ridges are arranged. The manufacturing method comprises: a step for fabricating an intermediate molded body of the emitter, the intermediate molded body having a plurality of temporary ridges that are higher than the ridges to be formed and that are in the respective positions where the ridges to be formed will be disposed; and a step for forming th
