Abstract: Combined with the basic requirements of coal mine management system for locating of moving target and work characteristics of active RFID tags,referring Continuous Transmission to Screen Leak Reading(CTSLR) algorithm,Time Division Multiple Access(TDMA) algorithm and slotted ALOHA algorithm,the "TDLA" algorithm(Time Division to Leakage Avoiding) using the uniqueness of ID tags for slicing time cluster,as well as formulation of leaking rate are proposed.Compared with CTSLR algorithm,it is showed that the algorithm can effectively reduce or even avoid leakage reading.