There is the big difference in changing the banks of Tien river at present compared with the popular one in the past: The riverbank erosion process has occurred increasingly, with strong intensity, in the complex way, and even more in the dry season. The causes of this event are due to the interaction between climate change and activities of human that increase forces of stream flows in the two seasons, change the river bed and banks. In order to reduce these abnormal changes of the banks of Tien river and mitigate the damage, the authors propose some solutions for adjustments and adaptations.