Abstract: In order to realize a safety and high efficiency of the directional drilling in underground mine,a drilling measuring system applied to the directional drilling in underground mine was needed to be researched and developed for the real-time measurement and control of the borehole tracing.With the analysis on the constructi on environment in the underground mine,the drilling technique ,the functional structure requirements and others,the paper summarized the system researched and devel oped technology,the requirements and the key technology of the research and development and set up the implementing plans of the system compositional structure an d working principle,the working mode and control process,the research and development of the borehole mouth instruments,the design of the measuring probe pipe,the design of the system software and other key technology.There were four mode drilling measuring systems certainly implemented and development.The application effec t of the measuring systems was good and the systems could meet the requirements of the directional drilling in underground mines.