This paper discusses the design and implement of the distributed interactive simulation(DIS) for a missile testing system. It imports the DIS technology, virtual reality technology, and the scene's creation technology. It can vividly display the virtual battlefield, the processing of campaign and decision, and the track of infrared targets. It creates the movement model of six-degree-of-freedom missile. The scene and targets will be simulated dynamically in terms of the missile's state and velocity, which controlled by the system's controlling model, and will be zoomed, vagabondized, circumvolved and changed 3D modality on the basis of requirement of controlling operations.