The invention relates to an implant injection device (1), comprising:an injection needle (3),a receiver housing (7) for receiving at least a first implant and a second implant,injection means (11), comprising: a pushing rod (37), arranged upstream from said implants housed in the receiver housing (7) and configured to push the first implant and the second implant through the injection needle (3) between an initial position and a final position in which the first implant and the second implant are injected,means (39) for pushing on the pushing rod (37), configured to exert a force tending to move the pushing rod (37) from the initial position to the final position,intermediate stop means (41) holding the pushing rod (37) in an intermediate position between the initial position and the final position, said means oppose the force exerted by the pushing means (39) when the stroke of the pushing rod (37) reaches a predetermined distance corresponding to the length of injection of the first implant,means (43) for actuation by a user, configured to release a displacement of the pushing rod (37) from the intermediate position to the final position.