The Taiwan politics and governance has always become a US concern especially after the year 2000 when the longstanding KMT Party defeated to Democratic Progressive Party (DPP) in the country elections. Utilizing the qualitative approach, this research sought the geostrategic, geopolitics and economy implication of the US – Taiwan Strategic partnership towards US. The research findings are Taiwan always becomes US factors in developing the geostrategic strategy in North East Asia. On the strategic rebalance towards the Asia Pacific, it is concern whether US strategy considers Taiwan’s security role narrowly in Taiwan Straits or broadly in the western Pacific. US perspective on Taiwan in strengthening its strategic partnership relations is Taiwan island as future Forward Operation Base. The island became unsinkable aircraft carrier and can provide a firm base if something happened within the regions. The importance of Taiwan to US economy can be seen from the role of supply global supply chain.