Indo-Pacific region is an area of concern for the world today, because of the power in politics, economics and military of the countries that are in this region. Security problems that occur in this region become the attention of the world and Indonesia felt it necessary to play an active role in establishing peace and security in the region. Therefore, through the former Minister of Foreign Affairs Marty Natalegawa, Indonesia proposed the idea of establishment an Indo-Pacific Treaty of Friendship and Cooperation for maintaining regional security. This article intends to determine the meaning and purpose of the idea of this treaty, as well as the prospects and problems in realizing them. In conclusion, the idea and the purpose of the establishment of Indo-Pacific Treaty is to create mechanisms to promote peaceful means and mutual trust without deployment of military force and harming other parties in the region. Although for now the prospect of realizing this idea is still small due to a number of problems facing, but this idea can still be realized in the future by using a strategy that has the support of other countries in the region.