In order to make the observer survey intuitively the realtimestereoscopic situation among spacesky and groundan realtime and visualized display system is proposedwhich combines effectively 2D and 3D situation display.This paper describes the requirementsoverall functions and hierarchical structure of the system in detail.Several key technical issues in the system design are discussed：achieving realtime data operation with the AgConnect API interface functions；solving problems such as texture map that can be loaded in 3D model with the help of various means；designing and developing abnormal data preprocessing program by use of a sliding window detection method；and realtime tracking dynamic objects based on the principle of coordinate transformation.This system was tested and applied in a certain information warfare equipment against training successfullywhich shows its superior performance and wide application prospects.