Based on the life of the famous Soviet dancer Rudolf Nureyev,Irish-American writer Colum McCann in his fictional biography Dancer explores exhaustively the relation between space and the individual's identity,in which the historical figures undergo the existential crisis and identity reconstruction,unfolding the fate of the individuals in the waves of history.McCann ingeniously proposes to adopt art,emotion and self to heal mental trauma and reconstructs personal identity,which enriches the concept of space and identity,bringing hope for individuals in social mobility to seek belonging and dwelling poetically.