there has been effort to state and verify the impact of the trend of democracy seeking by nations on the United Nations’ structure. The research begins by introducing the series of conceptual changes in democracy. Then, after explaining the direction of democracy in today’s world and how democracy should be to meet the needs of the humanity of the third millennium, the elements of the final model are extracted. In the next section, amendments and modifications as well as orders and decisions made by the UN concerning this issue are studied. In chapter four, the effects of democracy-seeking trend on improvement of the UN’s structure are addressed. Today’s mankind is in need of universal support to fulfill their needs. To this aim, no organization is as legitimate and plausible as the UN. Thus, to be more efficient and to react to the pressures imposed by world communities, the UN has embarked on extensive changes. At the end, more theoretical deepening of such changes is recommended.