Abstract: In The God of Small Things , the contemporary Indian female writer Arundhati Roy deeply reveals the three types of power in the novel, and narrates their disciplinary methods and power operation mechanisms. India’s racial system, religious system, and colonialist culture, as the main subjects of discipline, have imposed various disciplines and punishments on the lower class of the Indian people. However, the awakening and resistance of powerless people such as Amu have conveyed the strong desire of millions of lower class people to reshape their subjectivity. Based on Michel Foucault’s theory of disciplining power, this paper studies the power mechanism and operation of this novel, revealing the oppression and disciplining of India’s realistic social system, and the positive ideas of reconstructing equal identity and resisting hegemony.