Disclosed is a Kirschner wire bending device comprising a locating slot. The locating slot is used for fixing a Kirschner wire (80) one side of the locating slot is provided with a contact (3 103) applying the bending force to the steel wire (80) fixed in the locating slot. Relative to the prior art wherein a tong jaw is used the steel wire (80) is usually firstly clamped and then the steel wire (80) is forcibly bent in the clamped state which are laborious and time consuming. This application not only provides a device for bending and scraping the orthopaedic wire (80) to be broken once which is suitable for cases where the steel wire (80) needs to be scraped to be broken and further provides a device for only bending the steel wire (80). Since the force for bending the steel wire (80) is much smaller than the force for scraping it until same is broken the low requirements for materials and low manufacturing cost thereof are suitable for cases where the orthopaedic steel wire (80) only needs to be bent.
