| Video game was born in America in the 1970 s, it has plot, needs sound and voice equipment, can be manipulated and interacted.Video games are popular because of its’ interactivity, immersive, reality, playing video games has become the dominant form of leisure entertainment at present. There has been controversy about the impact of violent video games, however, whether violent video games do harmful for children or not? This study aims to explore the effect of video game violence, competition and types of role playing in the game on children aggression.In this study, 285 primary school students from Nanchang are selected as the research objects. With the applying of the Hot Sauce Paradigm, measure objects’ aggression after playing different types of video game. This study includes two sub studies, the first of which investigates the effect of video game violence and competition on children aggression, the second of which verify the influence of video game violence and types of role playing in the game on children aggression. Key findings are listed as following:1. The violence content of video games dramatically affects children aggression, partly in some degree the competitive content of video games affects children aggression, there was no remarkable interaction between violent and competition.2. Before controlling aggression trait, types of role playing in the video games dramatically affects children aggression, compared with children who has low aggression trait, children who has high aggression trait show more aggression.3. There was remarkable interaction between the violence content of video games and types of role playing in the video games, there was no remarkable interaction between non-violent positive role group and non-violent evil role group, the aggression of violent positive role group significantly lower than violent evil role group. |