In the field of the Pacific island countries’ right to vote，there are few systematic studies in academic circles at home and abroad. Some scholars have sporadically mentioned the voting rights of island countries. For example，Oliver Hasenkamp mentioned it when studying the path and strategy of Pacific island countries and international organizations. In his opinion，the Pacific island countries are relatively indifferent when voting on issues that are not relevant to themselves. This is an obstacle to the influence of Pacific-island-like nations.A Region in Transition：Politics and Power in the Pacific Island Countries，eds.，Saarland：Saarland University Press，2016，pp.227-263.">[1] This article intends to explore the interaction between the Pacific island countries and the United Nations，and to analyze the island countries’ diplomatic preference from their voting characteristics in the United Nations.