Two novel cis-trans conversion pathways have been studied using the assembled monolayer films of azobenzene derivative on solid electrodes. The first one is electrostatic isomerization induced by strong electric field at the interface of electrode and electrolyte. The second one is inverted redox reactions which leads to the simultaneous conversion of cis-ABD to the trans isomer at UV light irradiation. These reactions may provide new strategies to the chromic applications of azobenzene.