Experimental investigations are described of the stimulated Raman scattering (SRS) characteristics in benzene and carbon disulphide placed into pores of globular photonic crystals – opal matrices, formed from densely packed globules of amorphous quartz (silica). Stimulated Raman scattering spectra have been excited by the second optical harmonic pulses (532 nm) of the YAG:Nd3+ laser. SRS spectra have been registered in the direction of mirror reflection from the globular photonic crystal growth surface (111) for different angles (10 – 70 degrees) of the laser light incidence. SRS threshold was found to decrease sharply (more than by the order of magnitude) at the definite angle of mirror reflection and additional Stokes and anti-Stokes components appear in the spectrum. Observed effect of the SRS threshold sharp decrease can be explained by the electromagnetic field spectral density increase near photonic crystal surface as a result of the photonic crystal stop-zone spectral position approach to the exciting light line (532 nm) with the change of the incidence angle of the exciting light to the surface (111).