Huangmao Sea Cross Sea Passage starts from Gaolan Port Area, Zhuhai City, Guangdong Province, connects Hong Kong-Zhuhai-Macao Bridge in the east, connects Xinhui-Taishan Expressway in the west and intersects with the West Coastal Expressway, and ends at Doushan Town, Taishan City, Jiangmen City. The total length of the route is about 31 km. The standard of two-way six lane expressway is adopted, and the design speed is 100 km/h.