Spectroelectrochemical studies of the dynamics of electrode surface processes using reflectance Spectroscopies are reviewed. Described in detail is the kinetic investigation of redox reactions of surface-confined species using potential-modulated UV-vis reflectance (electroreflectance, ER) spectroscopy. The kinetic data were treated on a basis of experimental confirmation that the ER signal due to a redox reaction is directly proportional to the amount of the redox species interconverted between two different oxidation states. A recent development of time-resolved IR reflection spectroscopy and its applications are also briefly cited. The importance of tracking the dynamics by using the spectroscopic signals is emphasized.