Shenzhen-Zhongshan Link, Transport infrastructure in Pearl River Delta, China.

The Shenzhen-Zhongshan Link is a bridge and tunnel in the Pearl River Delta in Guangdong, China. The structure runs about 24 kilometers across and beneath the water, connecting both shores on a direct route.

The idea of a fixed link between Shenzhen and Zhongshan dates to 1998, when the Zhongshan planning bureau proposed it; work on the artificial islands began on 28 December 2016. The immersed tube tunnel opened on 28 November 2023, and the link opened to traffic on 30 June 2024. In its first week, it carried over 720,000 vehicles.

The link's name appears on the 270-metre towers of the Shenzhen–Zhongshan Bridge, formerly the Lingdingyang Bridge, renamed on 7 June 2024. Since 25 October 2025, the western artificial island has welcomed visitors to an observation deck, an exhibition hall on the project's construction and a café, bookable by WeChat mini-program.

The link carries four lanes in each direction with a maximum speed of 100 km/h. Dangerous-goods vehicles are barred along the whole route at all times, and during trial operation trucks with four or more axles were temporarily excluded. Cross-city buses T01A and T01B run from Zhongshan to Qianhaiwan metro station in Shenzhen.

An underground section of roughly 6.8 kilometers (about 4.2 miles) runs directly beneath the seabed of the delta. At two points, the route surfaces again and transforms into high bridges, allowing larger vessels to pass beneath.