A model with vegetation effect parameterized is developed for studying lake-landbreeze. The dynamic framework is the improved meso-β scale model of Nickerson et al.(1979)in which the soil model by McCumber et al.(1981)and the vegetation parameteriza-tion scheme by Deardorff(1978)are included.Then,the governing system is closed by usingthe ttirbulence parameterization of Therry et al. (1983) and the improved radiation parame-terization by Mahrer et al.(1977).FInally,a sensitivity experiment is conducted in the lake-land breeze of Lake Taihu to the change of the vegetation cover asgire, It is shown that the vegetation coverage has an obvious influence on lake-land breeze.