The main duties of the Party School of the Central Committee of the Communist Party of China (National School of Administration) are to play the role of the main channel for cadre education and training, and to train provincial and ministerial-level leading cadres, bureau-level leading cadres, outstanding young and middle-aged cadres, heads of key state-owned enterprises, heads of secondary universities, county (city) party committee secretaries, leading cadres of ethnic minorities, theoretical propaganda backbones, and teaching and scientific research backbones of philosophy and social sciences in a planned way.