Since the global financial crisis happened in August, 2008, the economic depression and financial corporate governance spread to most countries, in the meanwhile, the interaction of both sides has seldom made concrete progress since 2000. After both sides participated in WTO, two sides have to face the challenges containing the differences of politics and economy, the confronting position of the system of government and the intense exchange of economy. Most importantly, how to build up the interactive channel of politics and economy is an urgent topic for both sides. The studying theory of this thesis is use the method of mutual demonstration from the vision of politics, economics, and historical method. Because the politics, economics, and political economy are related to the concepts of government, nation, and market, this thesis use the integrating vision to discuss the topic about how Taiwan businessmen invest in Mainland China The basis of the thesis is depended on free market theory and national economy theory, assisting with the dependent theory and new liberalism focusing on global trend and the economical relationship of cross-strait relies on each other more and more. As time goes by, the concept and ideas of both sides will integrate gradually. Therefore, both sides are trying to set up the duct of communication by legislation. Therefore, if both sides want to make benefits, they should restart to negotiate, based on "Mini-Three Links" to expand the way of communication. Up to now, the dependence of Taiwan's companies on both side governments is rising and falling. What Taiwan's corporations want is to have air traffic or navigation proceeded as soon as possible for saving the cost. 5. Taiwan's corporations hope both governments can put the political problem aside and do their best to develop economy. There are some suggestions: the government of both sides should establish a peaceful and interactive environment of politics and economy, and Taiwan's corporation should think about the strategy about global overall arrangement and how to use the advantageous resources in Taiwan. For the future, the key point of Taiwan's success is the cooperation between the government and corporations in Taiwan and to take the strategy of rooting in Taiwan and mapping out an overall planning and management in the world. Eventually, building up a harmonious cross-Strait relationship as quickly as possible is the best profit to Taiwan's corporations and the people of both sides.