A comprehensive understanding of the political and legal phenomenon of a high degree of autonomy under the authority of the central government does not only solve the issue of the boundary of power, but also the "personal problem" of users. Within the scope of high degree of autonomy, it is also necessary to solve a highly autonomous implementer-the "people's problem" of "Hong Kong (Macau) people ruling Hong Kong (Macau)". The exercise and implementation of the right of central governance requires the support of political forces that love the country, Hong Kong and Macao. "Hong Kong people ruling Hong Kong" and "Australian people ruling Macao" must focus on those who love the country, Hong Kong and Macao, and maintain and support the central government's right to govern the special administrative region, so as to lay the socio-political foundation of the central government's right to govern. In view of the fact that "Hong Kong (Macau) Hong Kong (Macau)" is a direct performer of the "one country, two systems" cause, their performance is to a certain extent related to the success of "one country, two systems". Therefore, this article decides to clarify the above issues. <<