Abstract
The history of each society is a futurity of ups and downs got over by its nation. The basis of their future will be made by the past, particularly if their precedent returns to the ancient times. Individual´s dependence on the present world, on one hand, and the past, on the other hand, represents the importance of the chronology. This article tries to study scientifically a main and decisive part of the history of Iran, namely the Qajar dynasty when it is a cause of deep and expanded changes since then. The main object of this study regarding the expanded and complicated changes in this time, is to consider the role and the effect of relations between Iran and Russia in the form of the Golestan and Turkmanchy treaties in the early of the Qajar.The most important outcomes resulted from these two treaties are the separation of some parts from Iran, people's dissatisfaction and determining the Araxes river as the major border between Iran and Russia.