Aimed at the backwardness of generation and assessment methods in communication guarantee, the paper designed a simulation system for emergency network of microwave communication. The system designed the architecture in the form of modular, constructed the modeling framework for communication equipment using hierarchy analysis, described the simulation process and proposed the simulation embodiments/realization methods through flow chart, realized the database management, and provided the evaluation basis of communication effect and the embodiments/realization methods. Finally, the feasibility and reliability of the system was verified through the daily network training simulation in this paper. The system provides more accurate analysis data and results to users through virtual evaluation methods, and can play an assistant decision role in communication guarantee scheme generation and effectively improve the efficiency of emergency communication guarantee.