In combat simulation,some arranged operations should be done,including force arrangement and deployment.As the simulation scale is becoming larger and larger,if it is deployed using the traditional means,the efficiency is low and result precision is poor.The visualization deployment system was constructed using GIS as basic framework,and two deployment modes were designed,the first is single deployment using deployment tree based on XML file,the second is batch deployment using deployment file drew from combat design.Finally,deployment map and deployment information database for combat simulation were built.At last,the design in combat simulation was achieved.