Abstract: The study aims to establish a comprehensive platform of artificial rainfall enhancement, combine information technology in artificial rainfall operations, get the real-time data and geographic information easily and quickly which are detected by automatic stations, satellites, radar, fire forecast and other exploration, and understand the situation from the browser instantly, and command artificial rainfall operations all over the country. The author studied the artificial precipitation emergency command system to prevent fire in Linfen tree farm, combined information technology in artificial rainfall operations with Web GIS, which was a new scientific and technological achievement of network information technology and geographic information system development, and designed and implemented by general framework of Web GIS, PHP, Open Layers, Eloquent ORM. The whole system can realize 5 sub-systems; monitoring information, forest fire forecasting, emergency command, job management and information, combined with the actual needs of the local, and changed the backward traditional way of emergency command. This system aims at artificial rainfall fire emergency command system in small-scale forest which lacks research. The author combined the command system with woodland fire warning, and realized the goal based on Web GIS, which could directly reflect design requirements and guide subsequent development.