A modular bone plate locking screws and bone plate system including

The present invention provides a modular bone plate locking screws and bone plate system comprising thereof, particularly suitable for general bone plate. The locking screw comprises a bone screw for implantation into a human body and a locking member, a bone screw is provided on the head relative to its longitudinal axis inclined at an angle of through holes for the locking member extends through, and the through in the wall of the bore hole is provided with engagement means for engaging corresponding engagement means on the locking member. Combined locking screw of the present invention to avoid the disadvantages of an ordinary bone plate system to achieve the performance even exceeds the locking plate system, and low cost, simple operation.