A spinal screw fixation device includes a spinal screw, a fixing screw, and a locking plate. The spinal screw has an oblique perforation hole, and the fixing screw passes through the oblique perforation hole, the locking plate has two locking holes through which the spinal screw and the fixing screw pass respectively, and the spinal screw, the fixing screw and the locking plate constitute a three-point fixed structure.一種椎釘固定裝置，包括一椎釘、一固定件以及一固定板。該椎釘具有一斜向穿孔，該固定件穿過該斜向穿孔，該固定板具有二固定孔，該椎釘與該固定件穿過該二固定孔，且該椎釘、該固定件與該固定板組成三點固定結構。
