The Shiziyang Link spans approximately 35 kilometers, connecting Nansha district in Guangzhou, the capital of Guangdong province, to the townships of Shatian and Humen in Dongguan.

The project's main structure consists of the cross-river bridge and land-based approach works. The Shiziyang Bridge, the key controlling project of the link, will become the world's first double-deck suspension bridge with a span exceeding 2,000 meters.

The bridge features a single span of 2,180 meters across the river. Upon completion, it will set world records for double-deck suspension bridges in terms of main span length, main tower height, anchorage foundation, main cable scale, and the number of lanes.