Intelligent command is an important direction for the new command and control theories， and large language models are important support for the realization of intelligent command capabilities such as intelligent interaction， task planning， and auxiliary decision-making. Combining theory and practice， we outline the military capability requirements of the large model and design a large language model application framework for intelligent command. Then， the system architecture， information process， and collaborative architecture of the “Aiwu large model+” system are proposed and the key technologies for engineering implementation are proposed. Empirical cases of intelligent command are used to verify the multimodal interaction and military language understanding of the system. Collaboration and command control of manned/unmanned platforms can be expanded， which provides reference for research and implementation of the major national defense and military special projects and the intelligent command in the future.