The distributed optical fiber sensing system based on Brillouin scattering for measuring the wire core temperature of optical phase conductors（OPPCs）is established.The measurement tests on temperature measurement accuracy and distribution for OPPC as well as50km optical fiber were carried out in an artificial icing room and outdoor，respectively.Distributed stress measurement of OPPC wire core and surface were tested through a winch to increase the tension of OPPC，and the Brillouin scattering frequency was measured.Results prove that the systems temperature measurement accuracy is 2℃. Brillouin scattering frequency shift is linearly proportional to temperature changes.The outside tension that OPPC suffered cannot be perceived by the OPPC core fiber.Therefore，the stress correction during temperature measurement needs not to be carried out.The stress fiber that optical cable laid on the OPPC surface meet the engineering requirements of OPPC stress measurement.