Lower limb IP plate cassette fixator

The utility model discloses a lower limb IP plate cassette fixator which comprises a baseplate. A cassette groove is formed in one side of the baseplate, the bottom of the cassette groove is connected with the baseplate, an inserting hole is formed in the side face of the cassette groove, a supporting rod is inserted in the inserting hole, a cassette fixing buckle is arranged on the supporting rod, sliding grooves are formed in two sides of the supporting rod, the cassette fixing buckle slides up and down along the sliding grooves, and the cassette fixing buckle and the supporting rod are fixed through a locking screw. By the lower limb IP plate cassette fixator, the IP plate cassette is guaranteed to be parallel to lower limbs of an examinee and perpendicular to the surface of a hospital bed, so that image quality is ensured, and accurate information is provided for correct diagnosis.