Huilai County, under the jurisdiction of Jieyang City, Guangdong Province, was formerly known as Kuiyang. Located in the southeast coast of Guangdong Province and the south of Chaoshan region; It is adjacent to Chaonan District of Shantou City in the east, Lufeng of Shanwei City in the west, Puning in the north and the South China Sea in the south. The land area of the whole county is 1253 square kilometers; By the end of 2021, Huilai County has a total of 15 towns, with a permanent population of 1.001 million.

Huilai County is an ancient city in eastern Guangdong. In ancient times, it belonged to Baiyue, and the Xia and Shang Dynasties belonged to Haiyang (South Ou). The main area of Huilai in the Qin and Han Dynasties is Jieyang County, Nanhai County. In the sixth year of Xianhe in the Eastern Jin Dynasty (331), Jieyang County was located in Haining County, which was the Dongguan County, and was located in the west of Huilai. In the fourth year of Tang Wude (621), it was incorporated into Haiyang and belonged to Chaozhou Prefecture. In the third year of the Jiajing reign of the Ming Dynasty (1524), Huilai County was set up, so it was named because the county was located in Huilai City.

Huilai is the location of East Guangdong New City and Jieyang Binhai New Area, a famous hometown of overseas Chinese in Guangdong Province, and the foreign trade gateway of East Guangdong. Huilai has a developed maritime transport industry, a large number of ships, a profound historical and cultural origin of the sea, and many existing ancient "Haisi" relics, which is an important node of the Maritime Silk Road. It is a pilot project of fiscal reform in counties directly under the jurisdiction of Guangdong Province. Huilai coastal area is one of the three mirages in China.

In 2021, the gross domestic product (GDP) of Huilai County will reach 29.395 billion yuan, up 7.3%. The added value of the primary industry was 5.726 billion yuan, up 3.7%; The added value of the secondary industry was 9.773 billion yuan, up 4.8%; The added value of the tertiary industry was 13.896 billion yuan, up 10.7%.