Abstract: Raman spectroscopy was applied to monitor the coalescence process of C₆₀ molecules induced by UV radiation.The C₆₀ moleculesm,adsorbed on the gold surface,was processed to enhance the Raman scattering effect.As shown by the recorded spectra,after the coalescence reaction,the bands corresponding to the high symmetry A_g mode of the C₆₀ molecules either disappeared or becamevery weak,but the bands of other vibrational mods just broadened and shifted to lower wavenumbers.The spectroscopy result suggests that the products of coalescence still keep the cage structure of the pristine C₆₀ molecules.