Abstract: In the new era, the ideological discourse power of cyberspace presents new features.For example, pluralism of discourse subjects, diversification of discourse carriers, and complexity of discourse content. It also faces the increasingly fierce competition for ideological discourse rights in the domestic cyberspace, and the ideological discourse power in the international network domain. There are still new challenges such as the continuous penetration of ideologies and the lack of construction of discourse rights in the cyberspace ideology in China. In order to control the ideological discourse power of cyberspace in the new era, it is necessary to improve the discourse literacy to guide online opinion leaders to play positive energy, expand the diversity of discourse carriers to enhance the influence of mainstream ideological discourse power, and persist in the innovation of discourse issues to build society. The dominant ideological discourse of the ideology continues to promote the transformation of discourse expression in order to achieve the "internationalization" of Chinese discourse standards.