Kaiyuan City, a county-level city under the jurisdiction of Liaoning Province, is managed by Tieling City. Located in the northeast of Liaoning Province, east of the middle reaches of Liaohe River, it is a hilly area. By 2019, Kaiyuan has jurisdiction over 3 streets, 16 towns and 1 township. The total area is 2813 square kilometers. According to the data of the seventh population census, as of 0:00 on November 1, 2020, Kaiyuan has 460927 permanent residents.

Kaiyuan is the earliest ancient city built in the Ming Dynasty, known as the "Ancient City of Northern Liaoning". Kaiyuan is located in the middle of Songliao Plain, on the golden belt of crop planting at 42 ° N, and is the main grain producing area of Tieling City.

In 2020, Kaiyuan's GDP will reach 10.79 billion yuan, an increase of 1.2% over the previous year at comparable prices. Among them, the added value of the primary industry was 3.87 billion yuan, up 3.9% over the previous year; The added value of the secondary industry was 1.86 billion yuan, down 0.3% over the previous year; The added value of the tertiary industry was 5.06 billion yuan, down 0.4% over the previous year. The added value of the three industries accounted for 35.9%, 17.2% and 46.9% of GDP respectively.