The atactic poly(vinyl alcohol) (a-PVA) aqueous solutions with NaCl were cast to prepare films and then the NaCl in the films was removed. The films prepared by removing NaCl in water had a water-resistance property. The degree of crystallization of the films increased with an increase of the content of NaCl in the solutions up to 3 wt%. However, the melting temperature (222-225degreesC) was independent of the content of NaCl in the solutions. The draw ratio and Young's modulus of the films prepared from the solutions with 3 wt% NaCl were about 2.5 and 3 times than that of the films obtained from an aqueous solution. Namely, in case of the films obtained from a-PVA/H2O/NaCl systems, both the drawability and mechanical properties as well as the degree of crystallization was higher than those for the film obtained from an aqueous a-PVA solution.