An intraocular lens injection instrument including: an injection part formed with an inner wall for folding the soft IOL and a front end for injecting the IOL folded along the inner wall into an eye a cylinder body part provided with the injection part at its end portion a push member for pushing the IOL toward the front end of the injection part, a restriction member attached to the cylinder body part to restrict movement of the IOL which is placed outside the axis and a release member for releasing the restriction member and pushing the IOL onto the axis, wherein the release member includes a contact portion to be brought into contact with the IOL when the restriction by the restriction member is released, the contact portion having a setting surface to be brought into contact with the IOL placed on the axis.