An intraocular lens injection instrument (100) comprising: an injection part (10) for injecting a folded soft intraocular lens (IOL) (1) through an incision of an eyeball, the injection part (10) having an inner wall to fold the IOL (1) a cylinder body part (60) provided, at its front end, with the injection part (10), the cylinder body part (60) including a push member (50) movable back and forth in an axial direction for pushing the IOL (1) placed on a push axis (L) a restriction member (20) attached to the cylinder body part (60) to restrict movement of the IOL (1) outside the push axis (L) without applying stress to the IOL and pressing means (35, 40) including a pressing portion (42, 43, 44) movable with respect to the cylinder body part (60) to press the IOL (1) placed outside the push axis (L), onto the push axis (L), the pressing portion (42, 43, 44) being configured such that a contact region that will contact with the IOL (1) is successively increased.
