This research is based on neo-functionalism to analysis the extent of cooperation in Taiwan and Mainland China in the sector of automobile industry, and how it will affect the government policy between Cross-Strait relations. Since Mainland China to open up its market, there are more and more Taiwanese businessmen to invest in Mainland China. The relation between Taiwan and Mainland China is more closely, especially after accession in WTO. According to the discourse of neo-functionalism interest groups¡]industrial elites¡^and political elites will affect the government attitudes in decision-making. The elite of automobile industry from both sides of Taiwan Straits press both governments to put the policy of ¡§three direct links¡¨ into practice, is the case in point.