Beitang fishery has a long history. /kloc-people lived here in the 0/3rd century and made a living by fishing. At the end of 13 century, the simple nets originally produced by coastal fishermen gradually developed into ground nets, trawls, rod nets and tidal production by using seawater. In addition, fishermen push nets, step on stilts of 7-8 feet, push long bamboo poles with their hands, and trudge to the seaside to produce. During Jiaqing period of Qing Dynasty, fishing boats began to use nets, drift nets, trawls, hanging nets and hooks, and changed from fixed nets to mobile nets. Fishermen from other places have moved in one after another. During the Tongzhi period of Qing Dynasty, there were 1 150 offshore fishing boats (including more than 600 in Beitang and 550 in Dagu).

After the thirty-first year of Guangxu in Qing Dynasty (1905), the Qing government increased the fishing tax, forcibly exploited it, and some fishermen's production boats were converted into transport boats, which gradually reduced the fishery output. By 1936, the fishing boats in Dagu and Beitang were reduced to 830 (more than 395 in Beitang and 435 in Dagu). There are 1 100 households engaged in fishery production.

1937, Japan occupied Tanggu and controlled offshore fishery production. During the flood season, Japanese fishing boats fished indiscriminately, aquatic resources were destroyed, the output dropped sharply, and prawns almost disappeared. 194 1 year, the output of aquatic products is only 15000 tons, so fishermen can't make ends meet, or they are forced to sell their boats to foreign ships as sailors or make a living in other places. From 65438 to 0945, the number of people engaged in fishery production decreased to 700. 1948 has 762 fishing boats with an annual output of less than 7,000 tons.

After liberation, the party and the people's government abolished the feudal exploitation system, issued fishery loans, guided the establishment of fishery mutual aid groups and cooperatives, and resumed the development of fishery production. 1956, there were 4638 fishing workers in the whole region, and the annual fishing of aquatic products was 15505 tons. After 1958, motorized fishing boats gradually replaced wooden sailboats. Fishing nets have been greatly reformed, and the types and quantities have increased. Modern navigation and communication equipment is becoming more and more popular. The fishing ground has expanded and the management mode has changed. 1989, the marine fishing output in the whole region reached 10379 tons, with 465438 motorized fishing boats and labor force 10028 people.

Beitang Fishing Port is a key mass fishing port in Tianjin. The unique natural environment and rich fishery resources in Bohai Bay make Beitang enjoy the reputation of "Golden Bond Jade Belt". After the mid-Qing Dynasty, Beitang became one of the royal seafood suppliers. Beitang seafood has a history of hundreds of years, and has gone through the process from home cooking on board, from home cooking to banquet, to brand formation and gradual improvement. "Beitang Seafood" is fresh and mainly made and cooked. Beitang sea area belongs to muddy shoal, with fertile water quality, clean and sand-free seafood and river fresh, sweet meat, fresh and refreshing taste. Especially in the past hundred years, Beitang Seafood has absorbed the essence of the cooking technology founded by Li Hongzhang in Huaijun Camp in Beitang, and integrated into the cooking technology of Hebei, Shandong and Henan, which has made the process of "boiling, boiling, frying, sliding and frying" more perfect and formed the unique characteristics of Beitang Seafood. Nowadays, Beitang seafood, as a characteristic and food culture, is deeply favored by people. There is a couplet lamenting the seafood in Beitang: original origin, praised by Queen Mother Li. Seafood is fresh in the river, fresh in the lake and fresh in Hong Kong, and the locals are amazed by foreign guests.