1993 Yushan County, Shanghuan City,

Six-year primary education has been implemented.

1982,

Beijing, Tianjin, Shanghai and Zhejiang took the lead in implementing the six-year primary school system.

From 65438 to 0986, the Compulsory Education Law of People's Republic of China (PRC) was promulgated, and the six-year primary school system was fully implemented.