Fei County, belonging to Linyi City of Shandong Province, is located in the central and southern part of Shandong Province, with Lanshan Mountain in the east, Ping Yi in the west, Lanling in the south, Mengyin and Yinan from the northwest to the southeast along Mengshan Mountain in the north, and Tanyi and other important industrial towns located in Philadelphia in the east and Tanyi in the east. Dongcheng New District and economic Development Zone are close to Linyi West New City and Linyi Beicheng New District, forming a core area of trade, logistics and industry. The administrative area covers a total area of 1660 square kilometers. By 2021, Fei County has a permanent population of 920,000.

Fei County is the hometown of longevity in the world, the capital of China's strange stones, the National garden City, the National Health City, the national Advanced County of scientific and technological progress, the best investment city in Shandong Province, the best ecological tourism city in Shandong Province, and the provincial civilized city. In ancient times, Fei County was the land of X - hobart Kingi, chiefdom of East Yi tribe. Lu yuan male after two years (before 427), a seed JiYou JiSun according to for the towns self-reliance. In November 1953, Fei County People's Government was renamed Fei County People's Committee. In December 1994, Linyi Administration was set up as Linyi City, and Fei County was still subordinate to it. As of October 2021, Fei County has jurisdiction over 1 subdistrict, 10 towns and 1 township, with the county government located in the Philadelphia subdistrict.

In 2021, the GDP of Fei County reached 46.97 billion yuan, an increase of 8.3% year on year; The per capita disposable income of all residents reached 31,381 yuan, with an increase of 9.5%, ranking second in the city.

In December 2021, Fei County was selected into the third batch of Shandong Provincial tourism Demonstration Zone public list.