Abstract: Based on the study of the existing CA-based fire spreading model,we propose the concept of cellular-scope which summarized cellular self-attributes and external influences by the concept of scope as a whole,and give a more comprehensive interpretation of the factors for fire spreading.Compared to the traditional model,a fire spreading model which is based on cellular-scope give a full consideration of the fire factors including not only the properties of center cellular such as the type of combustible material,temperature and so on,but also the ignition factor,distance factor,the role of wind action items and terrain action items of neighbors cellular,and distance coefficient is based on the map-algebra-based obstacle distance,and the terrain action items is based on DEM data.Finally,the simulated results show that the fire spreading model based on cellular-scope can be a real reaction to real-world process of fire spreading.