Abstract:This paper takes C4ISR Architecture Framework 2.0 as the description norms of architecture. It is on the base of analyzing C4ISR architecture and our military information system architecture, summarizes the main techniques and methods for designing an architecture, integrates common designing process for C4ISR architecture, puts forward an UML-based designing process of C4ISR architecture. And it rather deeply discusses the detailed implementing steps of diagrams in C4ISR architecture designing process based on UML, as well as the implementing orders of architecture products. Keywords:C4ISR Architecture Framework;C4ISR architecture;UML ;diagrams;architecture products