Ion selective electrode of Cu٢+ for determining of copper (II) in acid and Ammonia Solutions is presented. Optimal conditions and main characteristics of such electrode have been determined. The effect of anionic surfactants on the electrode has been investigated. The use of protective film such as cellophane, cellulose acetate, Lavsan, or nitro cellulose could be possible in order to avoid the difficulties related to the work in surfactant presented in the solutions.