Abstract: Faced with the modernity issues full of heterogeneity and difficult to define, Benjamin chose to externalize the problem of the essence of modernity into the image of the Flaneur. Through the tracking and observation of the Flaneur, with a Marxist critical attitude and historical phenomenological methods, he discovered many problems in the modern city, constructed the phenomenology of modernity in the dimensions of history and space, and clarified the basic connotation of modernity thought. Benjamin captured the intuition fragments of modernity through acute experience and created the image of the Flaneur as a dialectical image of modernity in terms of living space, mental state and criticism. By analyzing the image of Flaneur in Benjamin's thought of modernity, we can find the characteristics of the Flaneur image and its theoretical value, deeply explore the real living conditions of people in the space of modernity, and show Benjamin's dialectical critical attitude towards the issue of modernity.

Key words: Benjamin, Baudelaire, Flaneur, modernity