In view of the problems that the navigation buildings of the Three Gorges-Gezhouba cascade hub are in full load operation for a long time,and the number of ships waiting for locks is large and the time is long,the country is studying to promote the Three Gorges water transport new channel and Gezhouba shipping capacity expansion project.The construction period of the Gezhouba shipping capacity expansion project will have a significant impact on the passing capacity of the Gezhouba ship lock.To improve the passing capacity of Gezhouba shiplock during the construction period,the research is carried out on the electric intelligent working boat towing ships to pass through the lock in groups.Three operation schemes for the group passing through the 1# and 2# shiplocks of Gezhouba are proposed,and theoretical calculations and analysis are conducted,and comprehensive demonstration is carried out from multiple dimensions such as safety,efficiency,and economy.It is concluded that the bidirectional matching cycle operation mode of Gezhouba 1# and 2# shiplocks is the optimal scheme,and the group passing of ships through the lock can significantly improve the efficiency of ship entry and exit,and improve the passing capacity of the Gezhouba shiplock during the construction period of the Gezhouba shipping capacity expansion project.