NOVELTY - A chitosan and Y-type zeolite hybridized liquid separated film is prepared by mixing chitosan and suspension at 60-80degrees C for 2-3 hours and then mixing further at 20-25degrees C to prepare casting film solution; removing casting film solution for 1-2 hours and then casting film solution on glass at 25degrees C for drying into films; cross bonding the dried film in sulfuric acid solution (2 mol/L) for 24 hours and then washing with non-ion solution for preparing vitriolic cross bonding films; and drying vitriolic cross bonding films at 25degrees C 24 hours to prepare the hybridized film.    USE - For battery film of carbinol fuel.    ADVANTAGE - The method has abundant raw material; has cheap price; is easy to operate; and provides hybridized films which have low carbinol osmosis.    DETAILED DESCRIPTION - A chitosan and Y-type zeolite hybridized liquid separated film is prepared by:    (A) grinding sodium Y-type zeolite to 0.5-1 Mumeters zeolite powder (1.5-2 g /L);    (B) heating zeolite powder and ammonium nitrate solution at 75-85degrees C for 12-24 hours;    (C) filtrating zeolite powder and washing with ionic water till washing solution becomes litmusless and then drying at 110-120degrees C for 8-10 hours;    (D) calcining at for 110-120degrees C for 6 hours and then turning to hydrogenous type zeolite;    (E) mixing hydrogenous type zeolite, 3-aminopropyltrimethoxysilan and toluene having a weight ratio of 1:2:20 at 105-110degrees C where circumfluence respond is 24 hours;    (F) filtrating and washing with ethanol and non-ion solution respectively, and then drying the solution at 50-70degrees C to prepare amino Y-type zeolite;    (G) adding zeolite with mercapto and oxidizing for 24 hours to make mercapto turn to sulfurate radical then filtrate zeolite and wash with non-water ethanol and non-ion solution;    (H) dipping zeolite into sulfuric acid (1 mole/L) for 2-3 hours to make it protonize and filtrating and washing it with non-water ethanol and non-ion solution till the solution becomes litmusless and then drying at 110-120degrees C to prepare the Y type zeolite with sulfuric acid;    (I) adding amino Y-type or bisulfite Y-type zeolite to acetic acid solution (2-3%) with weight ratio of 2-12 g/L and then mixing and ultrasonic dispersing to prepare suspension;    (J) mixing chitosan and the suspension at 60-80degrees C for 2-3 hours and then mixing further at 20-25degrees C to prepare casting film solution;    (K) filtrating and removing casting film solution for 1-2 hours and then casting the film solution on the glass at 25degrees C for drying into films;    (L) cross bonding the dried film in sulfuric acid solution (2 mol/L) for 24 hours and then washing it with non-ion solution till the solution becomes litmusless for preparing vitriolic cross bonding films; and    (M) drying vitriolic cross bonding films at 25degrees C 24 hours in vacuum and volatilizing to remove impregnant and then preparing hybridized film for chitosan zeolite surface modified to Y type.