The utility model relates to a discernment positioning system, specifically speaking is a distribution GIS speech recognition automatic positioning device, including audio acquisition module, speech recognition module, CAD controlling part, audio acquisition module gathers and accepts pronunciation, and the speech recognition module is given through the conversion transmission to the pronunciation of gathering, and speech recognition pair of module pronunciation are discerned, then draw specific keyword, and according to the specific keyword that draws, the CAD controlling part is given in the transmission, and the CAD drawing of correspondence is seeked out according to specific keyword to the CAD controlling part, and is simple swift, has improved work efficiency.