Abstract: In this paper, through the research of ultra wideband wireless carrier communication technology（ＵＷＢ）, using TOF time difference positioning method, using the distance from the signal source to each monitoring point to determine the location of the signal, the paper focuses on solving the problems of large positioning error, inaccurate positioning and poor real-time performance in the process of mine personnel positioning, and discusses the application design scheme in detail to provide reference for mine personnel.