The invention discloses a power equipment remote intelligent on-line temperature measurement system. A temperature measurement module installed at a power equipment implicit connection part is utilized to carry out three-phase temperature measurement, a temperature measurement signal passes through a signal coding sending and receiving module, after an analog signal is converted into a digital signal, by utilizing Internet of things transmission technology Zigbee, a temperature measurement digital signal code is sent to a data analysis processing module, after data analysis processing module stores information, three-phase temperature comparison and ambient temperature comparison of each loop and temperature comparison between loops in equipment are carried out, if temperature of a phase is higher than temperature of the other two phases or three-phase temperature of a loop is higher than three-phase temperature of other loops, the data analysis processing module determines that the phase or a loop connection position has heating abnormity, a remote communication module carries out remote transmission of data obtained by the data analysis processing module to a data display module and a heating alarm module, and the data display module and the heating alarm module carry out heating information data displaying and alarming at a remote terminal.