The manipulation of the LB film was investigated by using poly(vinyl alcohol) bearingp-phenylenediacrylate moiety. Its property was characterized with comparison of the monomeric LB film made from correspondingp-phenylenediacrylic acid monoester of the side chain. The spectroscopic data showed that the polymer LB film with high photoreactivity was obtained successfully. The result of measurement dynamic contact angle of the polymer LB film revealed its unique surface property, which was shown by a high advancing contact angle (108°) and a low receding contact angle (15°).