In this paper, I am going to state something detailed about American fast food culture. With the continuous development of the global economy and the deepening of global economic integration, the influence of culture on the national economy is becoming more and more important. As a successful case, the penetration and development of American fast food culture to various countries in the world has important reference significance for us. This article introduces the definition, characteristics and representatives of fast food, expounds the cultural background of fast food from the origin and development of American fast food, and analyzes the American lifestyle, customs and values reflected and metaphorized by American fast food culture. The development and influence of American fast food culture in China will also be mentioned.