It is one of the closest islands to the continental shore of Zhejiang, being only 3.6 km from the southern Ningbo Beilun port and 6.25km from the eastern Zhoushan Island.
It is most famous for the production of Jintang Plums , a local fruit. The fruit has received a number of awards and accolades, earning a Zhejiang Province High Quality Agricultural Product Exhibition Silver Award in 1998 and subsequently a Gold Award in 1999 when the island was also conferred the namesake of "Jintang Plum Township " by the provincial government.
Jintang Island coastal waters produce a large number of marine products, such as squid, cuttlefish, fish, and more.
The 5.3-kilometer-long Xihoumen Bridge, linking Jintang and Cezi, two major islands of the archipelago, will be a suspension bridge consisting of a 2.6-kilometer sea-crossing bridge and 2.7-kilometer side joint sections on both ends, costing 2.48 billion yuan . It will allow the passage of ships of 30,000 dead weight tonnage.
The Jintang Bridge, linking Jintang Island and Zhenhai , will be 27 kilometers long. The 7-billion-yuan project consists of an 18.5-kilometer sea bridge and joint sections totaling 8.5 kilometers.
In 27 March 2008, there has been an accident involving a that hit the bridge construction site. Two pieces of reinforced concrete from the bridge weighing 3000 tons each got stuck in the cockpit of the freighter, which was moving at a fast pace. The accident will result in further delay to the completion of its construction.
There are plans by a - consortium to build an archimedes bridge in the 3,300m Jintang strait.
is also planning to build a proposed 12 container berths worth 10 billion yuan in future at Jintang Island in anticipation of fierce competition from Shanghai's .