Using the literature method and comparative analysis method,it combs the origin and development of carnival and football,the process of combining carnival and sports,briefly describes the generation and application of carnival theory,and based on the existing carnival theory and fan culture research,Infer a constant relationship between fans and carnival.On this basis,the carnival theory is combined with my country's football fan culture:the analysis of the current status of fan culture,combined with the core content and category of carnival theory,believes that fan culture has many fits with the research category of carnival theory.The three cores of carnival theory:carnival,carnival style and carnivalization are also reflected in our football fan culture and can be used to explain our football fan culture.At the same time,fan carnival will definitely have an impact on the outside world,and the negative externalities need to be reversed by external construction,but it must be ensured that the intensity is appropriate.Using carnival theory to carry out research on fan culture can not only explain the fan culture more deeply and comprehensively,but also have a certain reference value for explaining other carnival phenomena.