The Karakhan state, which was the first Turkish-Islamic state, is one of the most understudied issues in the political and cultural history of the Medieval Kazakh people. The first period of the foreign policy of the Karakhan state was directedto the Kocho Uyghur Idykut and Khotan lands in the East, and the secondat Mauerannahr due to the weakening of the neighboring state of Samani in the West. In foreign policy, the karakhans also fought for authority with other Turkish-Muslim States. One of them is the battle of Kantarat-u-charchiyan (Charchiyan Bridge), which took place between the Karakhans and the Ghaznaouis. This historic battle, which determined the future fate of the Khorasan region, took place near Belkh 397/1007 between the ruler of Karakhan Ilk Khan Nasir Ibn Ali and the ruler of ghaznaoui Sultan Mahmut. The historical significance of this battle lies not only in whose political dominance reigns in the Khorasan region, but also as one of the reasons for the political weakening of the Karakhan state, When studying the issue, we tried to use both the works of Kazakh historians and new data from the studies of Turkish historians researchers, who make a great contribution to the study of the history of the first Turkic-Islamic states. We hope that the results of the study will supplement the information concerning the history of the "Karakhan state" in the national historical science.