Geographical research and satellite images indicate the fact that nearly two-thirds of the earth's surface is covered by water and the remaining one-third is land. At the same time, in order to create a balance in the use of the world's waters, many international documents have been approved to enable the use of these international natural resources for all countries and nations, which include oceans, seas, rivers, open seas, continental plateaus, Archipelago, internal waters, territorial sea, waters of the area adjacent to straits and channels and deep sea area. At the same time, the importance of rivers in terms of the diversity of its uses is greater than all the above cases, and this issue has led to the conflict of interests between countries in the use of rivers and unilateralism in policy-making regarding the use and change of the course of some rivers without respecting the rights The tradition of other countries in the use of rivers should be taken into account, and it seems that the time has come that if the countries along the river or along the river are not able to resolve disputes about rivers and ratify bilateral, multilateral or regional treaties, then the organization should The United Nations and international law sought help and by approving international treaties, it restored regional general order regarding the use of the river by countries.