An intraocular lens injection instrument (1) for injecting an intraocular lens (IOL) (2) into a patients eye, including: an injection part (10) formed with an inner wall for folding the soft IOL (2) and a front end (11) for injecting the IOL folded along the inner wall into an eye a cylinder body part (30) provided with the injection part (10) at its end portion a push member (40) for pushing the IOL toward the front end of the injection part, the push member being movable back and forth along an axis (L) extending from the front end of the injection part to a rear end of the intraocular lens injection instrument (1) a restriction member (110) attached to the cylinder body part (30) to restrict movement of the IOL (2) which is placed outside the axis and a release member (120) for releasing restriction of the movement of the IOL (2) restricted by the restriction member (110) and pushing the IOL onto the axis, wherein the release member (120) includes a contact portion (123a-c) to be brought into contact with the IOL (2) when the restriction by the restriction member (110) is released, the contact portion having a setting surface (123e) to be brought into contact with the IOL (2) placed on the axis (L).
