The system of three provinces and six departments in Tang Dynasty was an administrative system. Three provinces refer to Zhongshu province (responsible for drafting imperial edicts), provincial Jinshi (responsible for implementation) and subordinate provinces (responsible for criticism and deliberation). The governors of the three provinces are prime ministers! There are six in Shangshu Province. They are the official department (responsible for promoting and selecting officials and cadres), the household department (responsible for population and economic development), the ritual department (responsible for etiquette education and sacrifice, equivalent to today's Ministry of Education and Culture), the Ministry of War (not explaining, you know), the Ministry of Punishment (equivalent to today's judicial organs) and the Ministry of Industry (responsible for some big projects, equivalent to the current National Development and Reform Commission). )