The wetting characteristics of the rubbed polymer thin films is studied by both statically and dynamically examining contact angle of a droplet of deionized water on the polymer surface. The rubbed polyimide thin films exhibit anisotropic surface wettability. In rubbing direction the rubbed polyimide shows higher hydrophobicity, whereas in the anti-rubbing direction, the polymer surface is more hydrophilic. The asymmetric polarity of the polymer surfaces owing to rubbing is considered to be responsible for the appearance of anisotropy in the contact angle hysteresis.