Abstract: The construction and application of weather modification operational system in Sichuan province have been introduced in this paper.The system is highly integrated and automated,it is very efficient and convenient for use.Multiple dimensions and different kinds of information can be collected and transferred immediately,and also can be visual displayed.It has multiple of functions,such as doing operational management,releasing early warning information before take artificial precipitation stimulation,making operational decision,calculate effect assessment.As a result of this system,operational management has been strengthened,and the efficiency of weather modification has been improved.