Based on the complex network theory, this paper comprehensively studies the equipment and its interrelationship in the tactical communication system and constructs a system networking model. Based on the analysis of the structure and organizational application of the tactical communication system, this paper provides an appropriate mathematical description of its net-electric attack strategy and evaluation. A network simulation test model of tactical communication system was established, and then, by changing the network structure of the tactical communication system, such as the number of nodes, the nature of links, and the conditions of the net-electric attack, changes in combat capabilities were observed, and the impact of equipment deployment and communication organization methods on the system was analyzed, and finally, reliability evaluation and optimization analysis were conducted.