In today's world, video games are a common source of entertainment, particularly among teens. Teenage gaming addiction has gradually become a very common thing. In recent years, with the outbreak of COVID-19, the emergence of many external factors has led to a gradual increase in video game addiction among teenagers. This is what this paper needs to discuss. External factors such as family factors, friends, social needs factors, and other environmental factors are discussed in this paper. In the article, the content of various studies is analysed and finds that adolescent video game addiction is related to external factors during COVID-19. The relationship between a child and a parent and the loss of a loved one during the pandemic can have an impact on a child's behavior. Friends are also an indispensable factor. The desire to seek socializing with the outside world during the epidemic will also be a reason. Because of this pandemic, both isolation and online classes have greatly affected people's lives, including on the topic of teenage video game addiction. This provides some ideas and theoretical basis for the exact related research later.