The National Defense University is the highest military institution of the Chinese People's Liberation Army, directly under the leadership of the CPC Military Commission, and its level is at the level of the major war zone, and it is the only academy of the PLA to enter the ranks of the national "985" project construction. 
Its main tasks are to train high-ranking generals and military theoretical talents, study war and military academics, and explore the laws governing national defense construction and development. The National Defense University has a number of colleges and research institutes, covering a variety of disciplines such as military science, management, and social sciences.
In addition, the research results of the National Defense University have a high international reputation in many fields, such as China's two bombs and one satellite project, manned space project, and other major scientific and technological projects. At the same time, the National Defense University also undertakes the important task of providing strategic advice and decision-making support for the state and the military. 
It should be noted that as a high-level military academy, the National Defense University has a very high rank and status, but it does not belong to the establishment system of the army, so it does not have a military rank. The teachers and students of the National Defense University are all active military personnel, and they have the corresponding military ranks, but the National Defense University itself does not have military ranks.