An intraocular lens injection instrument (1) comprises: an injection part (2) for injecting an intraocular lens (IOL) (100) into an eye through an incision to be formed in the eye, the IOL having a deformable optic part (101) and a pair of support parts (103) each having a loop shape extending from the optic part, and the injection part having an internal shape that allows the IOL to be folded during movement through the injection part a setting part (10) connected to a rear end of the injection part and configured to set therein the IOL in a state with no stress applied a main unit (3) of a cylindrical configuration having the injection part and the setting part at a front end and a push-out member (4) having a push rod (6) provided to be movable forward and backward in the main unit in order to push the IOL along a movement axis (L) out of a front end of the injection part. The IOL injection instrument further comprises: a guide member (30) provided in a rear of the setting part and arranged to guide forward and backward movement of the push rod, the guide member being configured to bend the push rod positioned on an axis different from the movement axis and then guide the push rod to move along the movement axis, and also configured to prevent a rear one of the support parts from becoming deformed, and the push rod has adequate flexibility to be deformed along the guide member.
