Abstract:With the development of probing into the sea, people have made great progress in the trans-straits passages of the world since the mid-20th century, especially in mass-constructed trans-straits bridge and submarine tunnels. The team of “study on trans-straits passage of Bohai Straits” have collected a plenty of materials, and formed a diagram-“Overview of Trans-straits Passages at Home and Abroad”. At the same time, the team made an analysis on the datum. This provides an important enlightenment for the construction of the five trans-straits passages(including Bohai Straits,Qiongzhou Straits,Taiwan Straits,etc.) in China.