The invention provides a rapid locating jig structure applied to electrode discharge machining. The rapid locating jig structure comprises a clamping gasket, a locating jig base, a fixing screw, a locating jig and a locating column. The clamping gasket is arranged on the upper side of the rapid locating structure. The front face of the clamping gasket is provided with four locating convex columns.The locating jig base is arranged on the lower side of the clamping gasket. One side of the locating jig base is provided with a locating hole. The fixing screw is arranged on the upper side of the clamping gasket and fastens the clamping gasket and the locating jig base. The locating jig is arranged inside the locating jig base. One side of the locating jig is provided with a locating hole. Thelocating column is arranged on the outer side of the locating jig base, penetrates through the locating hole of the locating jig base and the locating hole of the locating jig and fastens the locatingjig base and the locating jig. The rapid locating jig structure is simple and has the advantages of being high in locating accuracy and rapid in speed, corrosion with a correction gauge is not needed, replacement and locating of to-be-machined products can be conducted in batches, the rapid locating jig structure does not have excessive requirements for the operation skill of operating personnel,the operation process is simplified, and the work efficiency is improved.