The invention relates to an applicator device for a menstrual cup, which comprises two cylindrical pieces (2, 3) that can be coupled together with an axial sliding movement, an external first piece (2) comprising securing means (21) for securing the menstrual cup (4) to be placed, for the folded insertion of same inside the body of the woman, and an internal second piece (3) comprising support means (31) that unfold the menstrual cup (4) from the securing means (21) once the cup has been placed inside the users body.
