Abstract: The adsorption of various types of dye on silver bromide was investigated by cyclic voltammetry and electronmicroscope in this paper. The electrode used was built by depositing silver bromide on the platinum substrate as a model for photographic emulsion. It was shown that adsorption behavior of dyes on AgBr/Br^- surface was different depending on the electric charge of dyes. As soon as the positive dyes adsorbed, a sparingly soluble surface complex may be formed, while with negative dyes a soluble complex is formed, and no complex formation with negative noncyanine dyes because of the electrical repulsion between them. Therefore, with cyclovoltammetry it is possible to assess the tendency of adsorption of different dyes. The authors have also studied the roles of adsorption in supersensitization and "potenzierung" suggested by Eiester. The results showed that the state of arrangement of dyes on AgBr surface depends considerably on the strength of adsorption, The mechanism of potentiator by Riester has been proved to be reliable in our work.