The fluorescence is demonstrated a well out-seeding effect in the stimulated Raman scattering (SRS), which can drastically lower the SRS threshold and enhance the intensity of scattering-mode. The solution of fluorescent seeding in CS2 is used to the study of the fluorescence enhancement SRS in liquid-core optical fiber (LCOF). The results demonstrate that the stronger intensity of Stokes and anti-Stokes scattering light can be observed at low pump energy. The rhodamine B of narrow fluorescent spectrum is used, and the high intensity of first-order anti-Stokes line and low intensity of first-order Stokes line are obtained; and the β-carotene of broad fluorescent seeding is used, the seventh-order Stokes lines are obtained at low pump energy. So, the scattering mode of SRS can be selectively enhanced according to the different optical characteristics of fluorescent seeding.