The main functions of Rule Lake gate in Ganjiang new district,Nanchang City are flood control and landscape.The authors expound the comparison and selection of gate types from the aspects of structural layout,maintenance conditions and landscape requirements.Combined with the water level of Rule Lake,the operating conditions of the gate are analyzed and the design head is determined.The design layout of gate and hoist equipment is introduced in detail.The design layout is reasonable and meets the requirements of the specification.