Although China, now the world’s second largest economy and largest goods trading nation, has rolled out the ambitious currency internationalization protocol while maintaining strict capital controls for nearly a decade, the implications of this unique reform path on the international economy still present uncertainties. In this paper, we fill in this gap by developing a two country, two-goods model to investigate the impacts of currency internationalization on the international price system, which consists of goods market and factor market interactions. We propose a critical condition of sustainable currency internationalization and reveal high international price sensitivity to exchange rate adjustments.