In the present paper, the application of a UWB mixed positioning method based on pattern matching in underground mines is researched. This paper proposes a two-step positioning method of strip area system based on UWB communication that makes full use of stripe structure of roadway to arrange reference nodes along wall. The areas of various reference nodes continuously cover roadway in overlapping. First, use the positioning method of signal intensity and the strength value range of each reference node to determine the area of reference nodes where the target node is and then use UWB TOA ranging to generate constraint equation through reference nodes of areas for further obtaining the location information of target nodes. To carry out UWB TOA ranging, it is necessary to determine DP at first. To this end, this paper proposes a detection method based on incoherent energy collection, which can compare energy sampling sequence with determined threshold. The energy block that firstly exceeds threshold will be regarded as the sampling block where DP is and the intermediate time of sampling block is regarded as arrival time of DP. Based on this method, simulation analysis of ranging error is carried out and the experiment results show that this mixed positioning method can achieve high ranging and positioning accuracy.