An orthopedic implant screw, comprising: a fixing seat (10), the fixing seat (10) comprising a seat body (11), a deformation limiting portion (12), and a tapered penetrating portion (13), wherein the seat body (11) has a limiting cavity (111), a top avoidance opening (112), and a bottom avoidance opening (113), the deformation limiting portion (12) is arranged on an inner wall surface of the seat body (11), and the tapered piercing portion (13) is arranged on an outer wall surface of the seat body (11); and a screw body (20), wherein the screw body (20) is detachably mounted on the fixing seat (10), the screw body (20) is used to drill into a bone in a rotating manner, a part of the screw body (20) is limited within the limiting cavity (111), another part of the screw body (20) passes through the bottom avoidance opening (113) and then drills into the bone, and the screw body (20) located within the limiting cavity (111) presses against the inner wall surface of the seat body (11), such that the tapered penetrating portion (13) penetrates the bone, thereby preventing the screw body (20) from exiting the bone. The orthopedic implant screw resolves the problem in which a bone nail of the prior art is prone to loosening or unscrewing from a bone when subjected to a complex stress environment for an extended period, hindering rapid and stable growth and healing of the bone, and causes secondary injury to an affected site that seriously affects a patient's quality of life.La présente invention concerne une vis d'implant orthopédique, comprenant : une assise de fixation (10), l'assise de fixation (10) comprenant un corps d'assise (11), une partie limitant la déformation (12), et une partie de pénétration effilée (13), le corps d'assise (11) ayant une cavité limitante (111), une ouverture supérieure d'évitement (112), et une ouverture inférieure d'évitement (113), la partie limitant la déformation (12) étant disposée sur une surface de paroi interne du corps d'assise (11),