The impoundment of the Three Gorges reservoir changed the rapids’ sedimentation rules within the fluctuating backwater area.To guarantee the safe and smooth operation of the tail of the reservoir channel and Chongqing port,maintenance dredging is needed every year.This paper summarizes the situation of maintenance dredging at the Three Gorges reservoir fluctuating backwater area,analyzes the problems and experience during implementation of the dredging engineering,and gives suggestions to the dredging time and sequence,to serve as reference for the future dredging engineering.