In this paper, the red phosphor of SrSiN2: Eu2 + was synthesized by field assisted sintering technique rapidly. Combined with X-ray diffraction patterns, scanning electron microscopy and fluorescence spectrometer testing technology, the effects of synthesis parameters (synthesis temperature and holding time) on the crystal structure, microstructure, photoluminescence and thermal quenching properties were investigated. The results show that when the synthesis temperature is 1250 ℃ and holding time for 6min, the sample is pure SrSiN2 phase with high crystallinity. PL spectra showed that improve the crystallinity of the sample, the luminous intensity was significantly improved,and the thermal quenching performance of samples synthesized by field assisted sintering technique are better than those synthesized by solid state reaction.