With the development of the global economy, consumption motivations have gradually shifted from practicality to pleasant experiences. Films watching in theaters has become one of the major ways for the public to get spiritual pleasure. As a type of genre films, war-themed films focus on real or fictional battles in history, occupying an important position in the film and television market, which can also help promote patriotism amongst audience. The emotional experience of audience watching war-themed films is an important and complex research topic. Exploring the differences in the emotional cognition of different audience watching war-themed films will not only help promote culture, but also provide reference for filmmakers. Taking Chinese audience as research objects, this research mainly studies the differences in the emotional cognition of war-themed films. The research results are as follows: 1. The emotional cognition of audience of different ages is relatively consistent, and the emotional recognition of female audience is significantly higher than that of men; 2. The emotional recognition of audience graduating from high school and below is significantly higher than that of postgraduates and doctors; 3. The emotional recognition of audience of arts-related and science-related majors is significantly higher than that of film and television-related majors; 4. The emotional recognition of audience working for public institutions, societies, or themselves is significantly higher than that of workers and farmers; 5. The emotional recognition of audience who do not understand historical events at all or understand only a little historical events is significantly higher than that of well-understood audience.