Chemical deposition technique has been implemented for the deposition of cadmium sulphide thin films on glass substrates. The deposited CdS film samples were characterized by X-ray diffraction, scanning electron microscopy and optical absorption techniques. The electrical and thermo-electrical properties are also studied. XRD analysis of annealed showed that the film sample is deposited in cubic and hexagonal phases. The optical band gap energy of CdS film sample was found to be 2.4 eV. The electrical conductivity of the film sample was found to be in the order of 10−7 ( cm) −1 with n-type of conduction mechanism.