Abstract: The Grass Is Singing,written by well-known Doris Lessing,depicts the protagonist Mary's whole life and the black in South Africa with racial discrimination. My paper focuses on analyzing the construction of its racial other and sexual other to set forth how the writer narrates the subject constructs and interpellates the other by way of domesticating the other and excluding the other. In doing so, we can have an acute sense of the writer's real standpoint, as a female writer, that is, although she resents the colonialism, her works can't avoid the influence of mainstream ideology. Her novel The Grass Is Singing shows domestication, even exclusiveness of alterity of the black and female. Through its analysis, it can provide some new research directions and deepen the understanding about the injury of British colonialism to African people.