Considering the different requirements to 3D visual software of electronic warfare, the design of an adaptive software architecture was put forward.After studying the change of domain requirements, we proposed a method for demand abstraction and analysis, and designed an adaptive software architecture of 3D visual software for electronic warfare.The requirement processing, corresponding relation of requirement with architecture, and logical architecture were described concretely.In addition, the system expanded application method was given through the structure adjustment when the demand changes, which shows that the adaptive architecture can response to the changing requirements quickly, shorten the development cycle and reduce development costs.