ABSTRACTIn the present work, our investigation is to study on the optical and electrical properties of multi-component system of cholesteryloleate (CO), sodium oleate (Naol), and Glacial acetic acid (GAA). Mixtures of these molecules exhibits cholesteric, SmA, SmC, and SmG phases sequentially when the specimen cooled from its isotropic phase. These phases have been characterized by using microscopic technique. The temperature variations of optical transmittance have been discussed. Temperature dependent electro-optical phase transition behaviors of the given molecules have been discussed.