Haiwen Bridge, Road bridge in Hainan Province, China.

Haiwen Bridge is a cable-stayed road bridge across the mouth of Dongzhai Harbor, linking Puqian in Wenchang with Yanfeng in Haikou. Its 3,959-metre deck is 37.3 metres wide and carries six lanes. A single 151.8-metre pylon, shaped like the character 文, rises above the deck; white cables fan from it to the steel box girder.

Planning began in 2009 when Wenchang signed a PMC contract with China Highway Engineering Consulting Group, and construction started on 6 March 2015. The bridge was joined in November 2018 and renamed Haiwen, then opened on 18 March 2019. It was the first Chinese bridge built across an active seismic fault.

The bridge's name combines Hai (Haikou) and Wen (Wenchang), adopted in November 2018 when the span was joined; during construction it was called Puqian Bridge. Its 151.8-metre main tower is shaped like the character 文 (wen), a form read as "wen illuminates sea and sky". The crossing is part of Hainan's One Bridge, Four Roads project and of the Hainan Island Ring Tourist Highway.

The bridge carries a two-way, six-lane first-class highway with a design speed of 80 km/h and a 32 m wide deck. It links Puqian in Wenchang to Jiangdong Avenue in Haikou's Meilan District, cutting the drive from about 90 minutes to roughly 20. The main span leaves 34 m of vertical clearance over two navigation channels.

The main tower is shaped as the character 文 (wén, "writing"), a design called "文耀海天" (wén yào hǎi tiān), meaning writing shining over sea and sky. The tower rises 151.8 m, and the two main spans are each 230 m. The bridge crosses the epicentre of the 1605 Qiongshan magnitude-7.5 earthquake.