In response to the complex boundary conditions and difficulty in determining calculation parameters for the design of the reverse radial gate,as well as the lack of relevant design guidance literature and high design difficulty,we carry out the model test research on the reverse radial gate of the Datengxia ship lock,and summarize the design experience of the reverse radial gate of Gezhouba,Three Gorges,and Datengxia ship locks.we obtain a corridor shape that can effectively suppress cavitation phenomenon,select the dynamic water load coefficient based on the speed of closing the door.Adopting a fully enclosed door structure and streamlined bottom edge can reduce water flow disturbance,improve flow patterns,and reduce cavitation damage.The calculation of the opening and closing force needs to consider design points and rationalization suggestions such as dynamic water resistance and water column force.