An intramedullary nail having an anti-tilt function and an overall length of L comprises one or more bores formed in each of a proximal region located at an upper part of the intramedullary nail and a distal region located at a lower part thereof, wherein: one or more first bores are formed in a first region located at a lower side of the proximal region, and the range of the first region is 0.12 L to 0.45 L from a proximal end portion； and one or more second bores are formed in a second region located at an upper side of the distal region, and the range of the second region is 0.46 L to 0.85 L from the proximal end portion.
