To solve “The last kilometer problem” of front-line combat services in joint operations, center and no-center application modes and its realization thinking of tactical services were proposed. Based on the principle of cloud-building technology and the characteristics of cloud architecture system, considering the operating environment of tactical information system and the application requirements of tactical coordination, the essay analyzed the deployment pattern, the communication link and the information interaction of the tactical information services with cloud technology. Several application examples, with tactical services based on cloud architecture, explaining the working principle and implementation, were specially introduced, such as disaggregation and polymerization according to requirements, cross-node access, and compatible application. The research could provide reference to promote the cloud architecture service mechanism to the tactical end and establishment of next-generation tactical information system.