The construction of psychological space is an indispensable dramatic strategy. Breaking conventional spatial techniques, African American playwright August Wilson adopts visual image and other metaphorical and poetic strategies to construct an alienated psychological space of African Americans in his play Fences. He presents the impact of spatial shift and segregated spatial environment on African Americans’ psyche by means of the juxtaposition of theatre space within(stage setting and theatrical objects) and theatre space without(fragmented memory and the blues music).