Guanyun County, subordinate to Lianyungang City, Jiangsu Province, is located in the northeast of Jiangsu Province, bordering the Yellow Sea in the east; The west is adjacent to Shuyang County, Suqian City and Donghai County, Lianyungang City; The south is adjacent to Guannan County of Lianyungang City across Xinyi River; It borders Haizhou District, Lianyungang City in the north, between 119 ° 2 ′ 50 ″ - 119 ° 52 ′ 9 ″ E and 34 ° 11 ′ 45 ″ - 34 ° 38 ′ 50 ″ N, with a total area of 1538 square kilometers. It has jurisdiction over 12 towns and 1 street.

Guanyun County is named after Guanhe River and Yuntai Mountain. Guanyun County has a long history and is known as "the blessed land of the East China Sea, the northern water town" and "the scenic spot of Dongying, the ancient country of Shaohao". Guanyun County used to be under the jurisdiction of Haizhou. 6500 years ago, there were human beings in Dayi Mountain. Qu County was named in the Qin Dynasty, and Guanyun County was set up in the east of Haizhou in the first year of the Republic of China (1912). At that time, the territory included today's Guanyun County, Guannan County, Yuntai District, Lianyun District, and Xiangshui County, Yancheng City. Guanyun County is the first batch of counties open to the outside world in China. It is the capital of China's rotary tiller, the hometown of academicians, and the hometown of China's famous chefs. There are 8 state-level inland waterways, including Dayi Mountain, the first holy mountain in Huaibei, Yanwei Port, the only sea-river intermodal port in Jiangsu. Yi Yin of the Shang Dynasty, Zhong Liming, Sima Longju, a famous general of the Chu and Han Dynasties, Bian Geng, a top military officer in the Qing Dynasty, and Wu Tongju, a modern water conservancy expert, were born or stopped in Guanyun. Since modern times, six academicians of the "two academies" have come from Guanyun.

By the end of 2021, Guanyun County has a permanent resident population of 719400 and achieved a GDP of 42.402 billion yuan. From the perspective of industry, the added value of the primary industry is 8.21 billion yuan, the added value of the secondary industry is 15.25 billion yuan, the added value of the tertiary industry (service industry) is 18.942 billion yuan, and the per capita GDP is 58700 yuan.