According with the characters of smokes particles and the conditions of the smokes loading,the way to modify and simplify the classic smokes model with the images and data got from field tests.Based on all those characters and data the independence cellular states and the expend rules of cellular automaton for smoke expend model was set up.And all influence factors such as winds and environment were included in the rules to modify the cellular automaton models.The simulation result has the window of 360 × 240 and the speed of no less than 40 frames per second.