In the framework of international cooperation aimed at advancing the “Belt and Road”，South Asia possesses the geographical advantages of involving and driving north and south and communicating land and sea. It has an important position that is unattainable in other regions. Due to the doubts of India，the progress of “One Belt and One Road” construction in Bangladesh，China，India，Burma and the South Asia region is uneven. However，the overall progress is good and there are many achievements in infrastructure projects. With the advancing construction of the “Belt and Road Initiative”，both China and this corridor have both successful experience in international cooperation as well as various challenges that deserve to be summed up and benefited from.