Abstract: Abstract:Influenced by the strategic demands of its own political powers and the growing economic and political importance of the AsiaPacific region, Japans AsiaPacific Economic Cooperation strategy focuses on two dimensions in 2017. That is, to lead the process of TPP negotiations without the United States and economic cooperation with the United States. The Trump administrations “economic unilateralism” has become the main factor restricting and influencing the development of Japans AsiaPacific Economic Cooperation strategy, but the withdrawal of the United States from the TPP has also provided Japan with certain political space to lead the AsiaPacific Economic Cooperation. In addition, although it is quite dissatisfied with the US trade protectionism policy, Japan still maintains a restrained and tolerant attitude in dealing with the trade frictions between Japan and the United States, and actively promotes coordination of economic policies with the United States and strategic cooperation in the energy field. In the future, there will be two hidden worries of “trade problem” and“route problem” in Japans economic cooperation with the United States, which will, to a certain extent, restrict the implementation and extension of its AsiaPacific Economic Cooperation strategy.

Key words: Japan, AsiaPacific Economic Cooperation, TPP, economic cooperation with the US