A primate restraint device capable of restricting the movement of a monkey and, particularly, capable of facilitating injection or blood collection. A primate restraint device comprising: a containing body having both side surfaces, a top surface, and a bottom surface; a door provided to the rear surface side of the containing body and capable of opening and closing the rear surface side of the containing body by sliding up and down; and a partition wall which is formed so as to close the inside of the containing body from the front surface side and to be movable forward and backward within the containing body and which is configured to be able to be affixed at a desired position within the containing body. The partition wall has provided therein hind-limb protrusion openings from which the hind limbs of the contained primate are caused to protrude to the outside.