Nine years. Compulsory education in Xinjiang is a nine-year system, starting from the first grade of primary school and ending in the third grade of junior high school. Compulsory education refers to the basic education that must be accepted by national laws, and is regarded as the basic right and obligation of every citizen. In China, the legal term of compulsory education is nine years, including six years in primary school and three years in junior high school, which is applicable to all citizens in China.