Drill bit positioning tool

The embodiment of the utility model discloses a drill bit positioning tool. The drill bit positioning tool is used for taking out a broken screw out of a threaded hole, and comprises a sleeve and a positioning bush arranged in the sleeve, wherein the sleeve comprises an installing portion and a fixing portion, the cross section of the installing portion is of a regular polygon structure, external threads matched with the threaded hole are formed in the periphery of the fixing portion, a positioning hole which only allows a drill bit to enter and go out is formed in the positioning bush, and the positioning hole and the threaded hole are arranged in a coaxial mode. When the drill bit positioning tool is used, the sleeve is installed in the threaded hole through a wrench and the installing portion, an appropriate amount of lubricating oil is dripped into the positioning hole, and in the drilling process, the drill bit just needs to be aligned with the positioning hole. By the adoption of the drill bit positioning tool, alignment between the drill bit and the axis of the threaded hole can be achieved by aligning the drill bit with the positioning hole, accuracy is greatly improved compared with a visual inspection mode, and the probability that the broken screw is taken out is increased.