Distributed Temperature Sensing (DTS) technology is a new type of sens ing technology that monitors the temperature field of the measured environment i n real time.Compared with traditional well temperature measurement technology, it has the advantages of passive operation,distributed acquisition,and simple layout.The mining of coalbed methane wells has clear measurement requirements f or downhole profile temperature and pay zone flow.This article briefly introduc es the principle of DTS equipment and output interpretation,combined with the a ctual temperature monitoring test of DTS equipment in a domestic coal-bed metha n e well,verifies the feasibility of DTS in production logging temperature monito ring,and preliminarily calculates the gas well′s production flow through interp retation software.Through comparison with traditional testing methods,the curr ent temperature measurement accuracy and resolution of distributed temperature s ensors have reached 1℃ and 0.1℃ respectively,and the calculation error of t he formation flow rate is controlled at about 3%.