An endoscopic duct cleaning tool (1, 1a-g) which is inserted into a duct of an endoscope to clean the duct, comprising: a core wire which consists of a stranded wire; a plurality of cylindrical elastic porous members (20, 20b-g) which are disposed at certain intervals and at certain places in an axial direction of the core wire so as to directly cover outer circumferences of the core wire; and resin tubes which cover outer circumferences of portions of the core wire which are not covered with the elastic porous members (20, 20b-g); wherein ones of the elastic porous members or sets of the adjacently-disposed elastic porous members (20b-g) are disposed in plurality at the certain intervals, wherein the resin tubes are formed: to have an outer diameter larger than that of an inner diameter of the elastic porous members (20, 20b-g); to be divided into a frontmost end tube disposed at a frontmost end side of the frontmost elastic porous member, an inter-porous-member tube disposed between the ones or sets of the elastic porous members and a basemost end tube disposed at a basemost end side of the basemost elastic porous member; and to entirely cover the outer circumferences of the core wire except portions covered with the elastic porous members (20, 20b-g), and wherein the frontmost end tube and the basemost end tube are fixedly attached to the core wire. a core wire which consists of a stranded wire; a plurality of cylindrical elastic porous members (20, 20b-g) which are disposed at certain intervals and at certain places in an axial direction of the core wire so as to directly cover outer circumferences of the core wire; and resin tubes which cover outer circumferences of portions of the core wire which are not covered with the elastic porous members (20, 20b-g); wherein ones of the elastic porous members or sets of the adjacently-disposed elastic porous members (20b-g) are disposed in plurality at the certain intervals, wherein the resin tubes are formed: to have an outer diameter larger than that of an inner diameter of the elastic porous members (20, 20b-g); to be divided into a frontmost end tube disposed at a frontmost end side of the frontmost elastic porous member, an inter-porous-member tube disposed between the ones or sets of the elastic porous members and a basemost end tube disposed at a basemost end side of the basemost elastic porous member; and to entirely cover the outer circumferences of the core wire except portions covered with the elastic porous members (20, 20b-g), and wherein the frontmost end tube and the basemost end tube are fixedly attached to the core wire. to have an outer diameter larger than that of an inner diameter of the elastic porous members (20, 20b-g); to be divided into a frontmost end tube disposed at a frontmost end side of the frontmost elastic porous member, an inter-porous-member tube disposed between the ones or sets of the elastic porous members and a basemost end tube disposed at a basemost end side of the basemost elastic porous member; and to entirely cover the outer circumferences of the core wire except portions covered with the elastic porous members (20, 20b-g), and wherein the frontmost end tube and the basemost end tube are fixedly attached to the core wire.