June to July. According to official website's inquiry of Ruyuan Secondary Vocational School, the first enrollment period of Ruyuan Secondary Vocational School is from June to July, and the school was founded in 198 1, formerly known as Ruyuan County Ethnic Middle School. At that time, it was a complete middle school with general education, and 1988 offered vocational classes. In 2003 and 2004, the county government separated ordinary high schools from junior high schools.