Situational awareness assessment system is a comprehensive subject, involving a large number of activities. In order to influence factors of scientific and rational assessment of the situational awareness, this paper mainly uses method to construct the optimization genetic algorithm for collaborative model, analysis the influence weight of situational awareness, influencing factors and mutual influence between them. In order to cope with the complexity of the cooperative system, this paper studies the establishment of an executable model system, mainly for system construction, system debugging, test system design, implementation and deployment.