Fundamental and higher order linear Raman scattering of J-aggregated 2,2′-cyanine adsorbed on the silver colloid has been analyzed on the basis of its concentration dependence. The results indicate that there exists only one kind of stable a-dsorbed J-aggregate structure. Some of the low-frequency bands in Raman spectrum are mainly due to J-aggregated molecule, which also plays an important role in the enhancement of higher order linear Raman scattering.