To provide a bone fixation device able to firmly fix bone elements.A bone fixation device, comprising: a base section having a first space that holds a rod； a hook formed with a second space in which a bone element is accommodated together with a art of the base section； and a sandwiching part that is installed to the base section and that sandwiches the bone element which has been accommodated in the second space together with a part of the hook, wherein the sandwiching part is shiftable allowing attachment to the bone element.
