This paper, in the context of history of Hong Kong's returning to PRC, analyzes the construct of the PRC leaderships' discourse on the international norms of democratic rights by reviewing the language symbols from the texts of the PRC's political human rights policy toward Hong Kong so as to scrutinize the type and implications of PRC's international norms constructing. It argues that, after the returning of Hong Kong to PRC, the type of international norms constructing of democratic rights that PRC takes toward Hong Kong is swinging between the instrumental adaptation and the argumentative discourse. The ”one country two systems” formula serves as a norm on the limited democratic right in response to the pressures from international human rights force and domestic autonomy regions.