Nanostructured zinc sulphide thin films were deposited onto glass substrates by using chemical spray pyrolysis deposition method at 673 K and the electrical properties of the as deposited thin films were investigated. In order to determine the electrical characterization, the resistivity measurements of the films were performed by using two-probe method. The optical band gap of the deposited film was found to be 3.51eV. The electrical resistivity of zinc sulphide thin films was found to be of the order of 10⁵ Ωcm. The thermo-emf measurement confirms that zinc sulphide thin films have n-type conductivity.