War system is a typical complex system, whose study must be guided by the complexity science, where the concept of artificial life plays an important role. In this paper, the artificial societies of war system based on artificial life and agent-based modeling and simulation, including the special public opinion, the general public opinion, the economy in a special area, and international political ecology, are reviewed and analyzed. Finally, some key problems——emergence, solutions of war problems, and individual's adaptability, etc. are discussed.