Provided is technology which can prevent the circumferential section of the end surface of a tip end opening from being damaged when an intraocular lens is extruded from an insertion apparatus, even when an insertion tube of the intraocular lens insertion apparatus has been further reduced in size. Provided is an intraocular lens insertion apparatus in which the end surface of a tip end opening (10j) in a tip end section (10a) of an insertion tube is an inclined surface that is inclined with respect to a surface (M) perpendicular to a central axis (L) of the insertion tube, and also the angle of inclination, with respect to the surface (M) perpendicular to the central axis (L) of the insertion tube, of the end surface of the tip end opening is larger toward a base end section (101) than toward a tip end section (100), wherein a predetermined region of the circumferential section toward the base end section (101) of the end surface of the tip end opening (10j) has a curved shape that protrudes toward the outside, and has a radius of curvature (R4) that is equal to or less than the radius of curvature of another region of the circumferential section.
