Abstract: Raman spectrum technique have the virtues of undamagensample and small sample consumption.The quantitative information of conjugated polystyrene/single-walled carbon nanotubes was analyzed through "G" peak of single-walled carbon nanotubes and prominent Raman band of polystyrene in the Raman spectra. The result shows that mass ratio between the single-walled carbon nanotubes and the polystyrene from the Raman measurement was identified with the mass ratio of the original complex.