In this work, corn starch-sodium bisulfite (NaHSO3) filmsĀ were prepared with different ratios of sodium bisulfite (5wt.% to 40wt.%) by using a solution casting technique, The films prepared were then characterized using non-destructive electrical impedance spectroscopy to determine the conductivity and electrical transport properties of SPE films. The highest conductivity of sample at ambient temperature was recorded at 15wt.% of NaHSO3 with a value of 2.22 š” 10-4 Scm-1. The conductivity of the samples was found to depend on diffusion coefficient, mobility and number of mobile ions