Abstract: Because photo-thermo-refractive(PTR) glass has high photo-sensitivity in the UV band, and high transmittance in the near-IR band, volume Bragg gratings(VBGs)recorded in PTR glass are widely used in high-power lasers. Recent progress of spectral beam combination of fiber lasers based on VBGs was reviewed. The theory of VBGs recorded in PTR glass and the basic principle of five kinds of spectral beam combination schemes were introduced, including spectral beam combination based on single VBG,cascaded VBGs and multiplexed VBGs, common-cavity spectral beam combination and coherent and spectral beam combination based on VBGs. The advantages and disadvantages of these schemes were analyzed. At last, the problems of each beam combination were discussed.