Invisible Man is a historical biography of African-Americans and an anguish process of man’s quest for identity in this dehumanizing and absurd society of racial discrimination.Certain objects are input deeper meaning to represent the miserable living conditions of the African-American.This paper mainly presents the identity crisis of African-Americans by study Invisible Man on its writing techniques:on the use of symbols. Invisible Man is a historical biography of African-Americans and an anguish process of man’s quest for identity in this dehumanizing and absurd society of racial discrimination. Subject objects are input deeper meaning to represent the miserable living conditions of the African-American.This paper mainly presents the identity crisis of African-Americans by studying Invisible Man on its writing techniques: on the use of symbols.