This work is an attempt to reconstruct the history of the Lakhmid state, which existed in the period from the second half of the 3rd to the beginning of the 7th centuries. in the southwestern part of modern Iraq. The rulers of the Lakhmid dynasty had power over a number of Arab tribes, including those living in Arabia, but at the same time they were subordinate to the kings of the Sasanian state and served them as governors. The work presents the political history of the Lakhmid state, makes observations and generalizations regarding its development. Much attention is paid to the history of the Sassanids and their policy towards the Arabs.