The single point mooring with double pipeline project in Bangladesh, financed by China Eximbank, has completed channel deep post-trenching of the first offshore pipeline despite great technical difficulties. The maximum trenching depth is 11.9 meters, setting a world record for the deepest offshore pipeline post-trenching in the industry and laying a solid foundation for the overall construction of the project. At a time when the COVID-19 pandemic was raging across the world and at a place where local resources are scarce, strict quality control and safety risk control were exercised and the construction plan was kept improving according to the reality on the ground. With these efforts, great progress was made in completing the project and remarkable achievements were made in advancing high-quality Belt and Road cooperation.