This paper intends to explore US Asia policy under the new administration of Donald Trump. President Trump’s foreign policy thinking is vague and US Asia policy will enter into a period of transition. Asian countries have voiced their concerns about the possibility that President Trump may reduce US commitment to Asia. Trump’s decision to exit the Transpacific Partnership (TPP) will have significant impacts on trade and economics and strategy in the region. The United States and China will also need to find a way to manage their disputes over the bilateral trade imbalance, Taiwan, and the South China Sea. Further observations need to focus on how President Trump’s national security team will operate in the future and how the US will work out overall security and trade strategies toward Asia.