Abstract: The middle route south-to-north water transfer project is a magnificent engineering of transcentury.It is characterized by a long route of water diversion and many structures of large size. For this reason, mechanics problems of the project are relatively complex and extremely difficult. Some of them have not yet encountered in the past. This paper described problems such as: hydraulic problems, including ice-hydraulic problems; river dynamic problems, including the engineering measures of main channel cro...