Disclosed are a tool bit of an ultrasonic osteotome and an ultrasonic osteotome including the same, the tool bit comprising: an arbour (2); and an end portion (1) of the tool bit connected to a front end of arbour (2), wherein the end portion (1) of the tool bit has a hook-like shape and includes a hook tip (11), a hook handle (13), as well as a hook-shaped interconnecting piece (12) which is interconnected between the hook tip (11) and the hook handle (13). The hook handle (13) is connected with the arbour (2), and the inner side edge of the hook-shaped interconnecting piece (12) is tooth-like. With this ultrasonic osteotome, the cutting efficiency is high and surgery time is short, therefore the labour intensity of medical workers is decreased. Moreover, accurate positioning can be realized in cutting process with no skidding, so the chance of success of surgery can be improved.
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