The invention discloses a Raman related double-wavelength light source self-correction distributed optical fiber Raman temperature sensor comprising a Raman related double-wavelength optical fiber pulse laser module, an integrated optical fiber wavelength division multiplexer, two optical fiber photoelectric receiving and amplifying modules, a digital signal processor, a display and intrinsic temperature measuring optical fiber, wherein the Raman related double-wavelength optical fiber pulse laser module comprises a driving power supply, an electronic switch, a main laser and a secondary laser. The Raman related double-wavelength light source self-correction distributed optical fiber Raman temperature sensor can correct random loss caused by bending or pressing and stretching temperature measuring optical fiber and optical cables which are used on site by self and overcomes temperature measuring errors caused by nonlinearity when an anti-stokes Raman signal channel is demodulated by astokes Raman reference path in a temperature measuring system. The Raman related double-wavelength light source self-correction distributed optical fiber Raman temperature sensor has low cost, simplestructure, good signal to noise ratio and high reliability and is suitable for monitoring online temperature in intermediate and short ranges of 100m-15km.