Abstract: Pointing out that method for solving the rough sets is a minimization problem of two-dimensional for on Granular-logic.The attribute value that the dfiniting on row and compositing on column intensity is maxima was defined as extreme value of granular,logic operation of granular comput with it stage by stage,finally minimization granular sets is got.Unifies the algorithm soluting for the rough sets on theory and the experiments show that it is efficienal.