Orthopedic screw placement device and orthopedic implantation surgery operation system

The invention relates to an orthopedic screw placement device and an orthopedic implantation surgery operation system. The orthopedic screw placement device comprises a power drill mechanism and a feeding mechanism, the power drill mechanism comprises a motor; the feeding mechanism comprises a bottom plate, and a linear motor and a linear guide rail which are mounted on the bottom plate; the feeding mechanism is connected with the power drill mechanism, and a linear motor drives the power drill mechanism to do reciprocating motion along a linear guide rail, so that the feeding motion of a surgical tool is realized; the orthopedic screw placement device further comprises a guide needle fixing mechanism used for positioning the guide needle. The guide pin fixing mechanism comprises a fixed support, a connecting rod mounting block, two clamping blocks and at least one pair of connecting rods; the fixed support is mounted on the bottom plate, and the connecting rod mounting block is mounted on the fixed support;