The Great Gatsby is one of the most important representative works of "Jazz Age", which profoundly reflects the prevailing social atmosphere of consumerism. The identity crisis of Myrtle in the novel reflects the relationship between the values of consumerism and identity: under the influence of the value system of consumerism, people associate the symbolic meaning carried by things with themselves, so that the meaning of human existence is given by things. People are keen to find their identity through the consumer goods they possess, and blindly imitate the lifestyle of the upper class. The powerful influence of consumerism has covered up the solidified class stratification, makes it difficult for people to realize their true selves, and one's dream of crossing the class boundary is doomed to become futile.