Cellulose / PPC blend Films were prepared by solution casting process. The performance of the blend films were characterized by DSC, SEM, mechanical tester, and air permeability tester. The results indicated that the mechanical properties and the moisture permeability of cellulose / PPC film increase with the contents of PPC while the air permeability decrease; the mechanical performance of the blend film is the best when the PPC is 30% . When the content of PPC is 40% , the wet permeability is the highest while the air permeability is the lowest.