PROBLEM TO BE SOLVED: To provide a method for manufacturing an interdental cleaning tool capable of suppressing defective molding of the interdental cleaning tool. A method for manufacturing an interdental cleaning appliance includes a first mold in which a base material is injected into a first mold to form a base material portion 10 having a base portion and a shaft portion 12 extending from the base portion. A soft material is injected into the second mold 50, 51 in which the base material portion 10 is housed, from a position corresponding to the intermediate portion 12b on the base end side of the tip end side portion 12a of the shaft portion 12, A soft portion 20 having a covering portion 21 for covering the distal end side portion 12a of the shaft portion 12 and a plurality of protrusions 22 protruding from the covering portion 21, and the covering portion 21 extending to the base end side of the shaft portion 12. And a second step of covering the intermediate portion 12b of the shaft portion 12 and molding the extended soft portion 30 having no protruding portion 22. [Selection diagram] Fig. 6【課題】歯間清掃具の成形不良を抑制することができる歯間清掃具の製造方法を提供する。【解決手段】歯間清掃装具の製造方法は、第１の金型に基材を注入して、基部と、基部から延在する軸部１２とを有する基材部１０を成形する第１の工程と、基材部１０が収容された第２の金型５０、５１に、軸部１２の先端側部分１２ａよりも基端側の中間部分１２ｂに対応する位置から軟質材を注入して、軸部１２の先端側部分１２ａを被覆する被覆部２１と、被覆部２１から突出する複数の突起部２２とを有する軟質部２０と、被覆部２１を軸部１２の基端側に延長するように軸部１２の中間部分１２ｂを被覆し、突起部２２を有さない延長軟質部３０とを成形する第２の工程と、を有する。【選択図】図６
