Rizhao City, because of the "sunrise light first" named. It is a prefecture-level city in Shandong Province, located on the coast of the Yellow Sea in the southeast of Shandong Province, facing Japan and Korea across the Yellow Sea in the east, Linyi City in the west, Qingdao City and Weifang City in the north, and Lianyungang in the south. The city's total area of 5358.57 square kilometers, sea area of 6000 square kilometers, under the jurisdiction of Donggang District, Lanshan District, Ju County, Wulian County 2 districts 2 counties. In 2021, the city's GDP was 221.196 billion yuan, an increase of 6.8% over the previous year based on comparable prices. According to the seventh census data, as of midnight on November 1, 2020, Rizhao's permanent resident population is 2,968,365.

Rizhao is a coastal ecological, livable, tourist, modern port city and harbor industrial base in China, as well as a component of Shandong Peninsula City Group, Shandong Peninsula Blue Economic Zone and Jiaodong Economic Circle. Rizhao has 168.5 kilometers of coastline, two natural harbors, Shiushu Bay and Fotou Bay, Rizhao Port and Lanshan Port, which are known as the "water sports capital" and "Oriental Sun City". Won the United Nations Habitat Award for good environment.

Rizhao belonged to Dongyi during the Xia and Shang Dynasties, and was one of the birthplaces of "Longshan Culture". It was called "the earliest city in Asia" by Oxford University's "World History Facts". It is Juguo from the Western Zhou to the early Warring States period. Song set up the town of sunshine, the beginning of the name "sunshine". Jin Rizhao County, Ming Dynasty is Qingzhou, Qing Dynasty is Yizhou. It was established as a prefecture-level city in June 1989.

Rizhao has such historical celebrities as Jiang Shang, Liu Xie and Ding Zhaozhong. It has been awarded the titles of National Civilized City, National Forest City, National Key City for Environmental protection, and National Pilot City for Ecological Demonstration Zone construction. On October 20, 2020, it was named the national model city (county) of double support. In 2021, Rizhao achieved a gross regional product of 221.196 billion yuan. On December 24, 2021, the first "Gigabit Cities" Summit Forum was held in Qingdao, Shandong Province. The first batch of "Gigabit cities" list was officially announced at the meeting, and Rizhao was selected.