Polyvinylalcohol (PVA) was treated by different weights of ZnCl2ranging from 5 to 30%, wt., and then hydrolysed with KOH where KOH/ZnCl2equals to 1 or 2 molar. The electrical conductivity and activation energy δE of the treated films were determined at different temperatures and dosages of γ-radiation. The obtained results were discussed on the basis of ion conduction mechanisms. The electrical conductivity behaviour of γ-irradiated samples was attributed to degradation and dissociation of macromolecular polymer due to the effect of γ-irradiation.