A vertebral plate zygopophysis compression fixation hook for lumbar vertebra fixation consists of an arcuate body, and a vertebral plate hook and a zygopophysis hook respectively arranged at the two ends of the arcuate body； the vertebral plate hook and the zygopophysis hook are C-shaped structures with inward openings； the zygopophysis hook is also provided with anti-slip grippers thereon； the arcuate body is also provided with a lockhole at a position adjacent to the zygopophysis hook； the vertebral plate zygopophysis processus transversus tension hook is made of a shape memory alloy for medical use； at a temperature lower than 4 degrees, the vertebral plate hook and the zygopophysis hook can be stretched and expanded, thus facilitating disposing the vertebral plate hook on the lower edge of the vertebral plate at the inferior centrum of a target intervertebral space, and disposing the zygopophysis hook on the upper edge of the zygopophysis of the superior centrum of the target intervertebral space, or on the upper edge of the root of the processus transversus； at a water temperature higher than the body temperature, utilizing the memory effect of the shape memory alloy can tighten the vertebral plate hook and the zygopophysis hook to effectively fix the vertebral plate hook and the zygopophysis hook to the lower edge of the vertebral plate of the inferior centrum of a standard space, and on the zygopophysis or processus transversus of the superior centrum； in addition, the arcuate body shrinks, and the restoring force thereof applies inward pressure to the neighboring centrum at the target intervertebral space, thus fixing the neighboring segments at the target intervertebral space of the lumbar vertebra.La présente invention concerne un crochet de fixation par compression pour zygapophyse de plaque vertébrale pour la fixation de vertèbres lombaires, ledit crochet consistant en un corps arqué, et un crochet de plaque vertébrale et un crochet de zygapophyse respec
