The construction of command post under informationization condition and the change of command behavior and command art are important parts of accelerating the transformation of combat effectiveness model. Command post already has a variety of new interactive devices and interactive tools, but between the “fragmented” sections, not in a unified framework of coordinated use. As a result, a lot of equipment and technology have to be shelved, and it is difficult to integrate into the command and control system. To solve this problem, a command post oriented multimodal interaction framework was put forward. The framework describes in detail the multimodall interactive command space software architecture, the architecture describes various models (command space conceptual model, hierarchical model, process model, component model, integration model) and their mutual relations, while the framework involves some key technical issues in depth. Finally, a comprehensive case studies on the subject were implemented which fully validate the research results.