Jiangsu Donghai Senior High School () is a high school in Lianyungang in China's Jiangsu province. Founded in 1953, the school became a Jiangsu provincial key high school in 1980. It received a four-star high school designation, the highest accreditation in the province, on 21 July 2004 from the Jiangsu Provincial Department of Education after completing an assessment. The school is a national .
The school teaches students in a five-level building that occupies .
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