In order to ensure the steady play of social benefits such as agricultural irrigation and ecological environment water supply,flood control and drainage in the Wanjin Irrigation District,this paper analyzes the problems existing in the operation,inspection,maintenance,safety production and prevention of drowning in the water channels and structures.It puts forward the treatment measures such as the cross-section,the sluice gate,the downslope road,the patrol channel road of channel engineering,steps,ladders,warning signs,reminder signsof the safety facilities,upper sluice gate,lightning protection of building engineering water gates,building engineering water gates,the arrangement of the sluice gate,and the form of the bridge and culvert across the water channel,etc.It can provide reference.