In 2023，against the backdrop of the turbulent international political and economic situation，Japan paid more attention to the geopolitical pattern of the Pacific island countries and further increase its diplomatic offensive against the Pacific island countries to improve its position in the region. Japan focused on promoting multinational cooperation and strengthening assistance and development in the Pacific island countries region，so as to enhance Japan’s influence in the Pacific island countries. On the foreign policy front，Japan and its partners began to shift from bilateral agreements to multilateralism，improving aid efficiency through new forms of cooperation. In the field of government development assistance，Japan was committed to achieving regional connectivity to accelerate the integration process of Pacific island countries through the establishment of a new mechanism for more effective regional coordinated development and digital integration，including artificial intelligence，to promote the coordinated regional development of Pacific island countries. In the field of economic diplomacy，Japan pays more attention to the multi-level connectivity of economic development and achieves economic growth on both sides in a win-win manner.