General Secretary Xi Jinping has always attached great importance to literary and art criticism. In his Speech at the Symposium on Literary and Art Work, he combined the criteria of Marxist literary and art criticism with the reality of China in the new era and the excellent traditional Chinese culture, and put forward four criteria for literary and art criticism: the criterion of history, the criterion of the people, the criterion of art, the criterion of aesthetics. These four criteria are the new major achievements of the sinicization and modernizationof the criteria of Marxist literary and art criticism, and have important enlightenment and guiding significance for the literary theory and practice of China in the new era.