PROBLEM TO BE SOLVED: To provide an interdental cleaning tool capable of efficiently preventing occurrence of breakage of a core base material part and a cleaning part, when a cleaning part is inserted into a space between the teeth, and during cleaning of spaces between the teeth.SOLUTION: An interdental cleaning tool comprises: a base material part 10 comprising a handle base material part 11 serving as a handle, and a slender axis-state core base material part 12 continuous to a tip end part of the handle base material part 11, and being formed of a resin composition comprising a synthetic resin and at least one kind selected from a fibrous filler and a tabular filer and a soft part 20 comprising at least, a cleaning soft part 21 for covering the core base material part 12, and being formed of an elastomer. The core base material part 12 and the cleaning soft part 21 constitute a cleaning part 2 for interdental cleaning, the cleaning part 2 comprises a first side part and a second side part. The first side part and the second side part respectively comprise, two or more, cleaning recess parts penetrating the cleaning soft part 21, and connected to a core base material part recess part on a surface of the core base material part 12 and having maximum depth of 0.01 mm-0.085 mm, with intervals in an axial direction of the cleaning part 2.SELECTED DRAWING: Figure 1
