After economic reform and opening-up, China constantly absorb foreign capitals. However, at the same time of economic take-off, for the need of continuously economic development and strategy, China must move towards the world in order to seek energy, technology, fund, overseas market etc.. Therefore, the model of China foreign investments and its operation under the international investment regulations is less likely to be discussed by theses. While Taiwan re-negotiate with China,it is necessary to study the model of investment and its reality which China invested in Hongkong after 1997 since Hongkong is the demonstration area under one country-two systems policy. When China still argue that it will implement one country-two systems policy under one Chine principle, this study will help us to understand how China will carry out its investment model in Taiwan in the future. Thus, the research framework of this study will be based on the above statements, and this study will also discuss relevant agreements regarding the international investment contract, technological transferring agreement etc.. This study will be served as a reference for China while making investment in Taiwan.