The invention discloses a sluice valve convenient to maintain. The sluice valve comprises a valve body, wherein sealing bearings are fixedly connected to the upper end and the lower end of the interior of the valve body, a rotating valve plate mechanism is rotationally connected in the sealing bearings, an upper sealing body is arranged at the top end of a valve cover, the middle of the upper sealing body penetrates through and is rotationally connected with a valve rod, a first O-shaped gasket is arranged in the middle of the interior of the valve cover, a thrust bearing is arranged at the middle position inside the valve cover and located below the first O-shaped gasket, a second O-shaped gasket is arranged at the middle position inside the valve cover and located below the thrust bearing, the valve rod is located at the axis of one end in the rear groove of the valve, and a driving half gear is fixedly connected to the axis of one end of the valve rod. The invention relates to the technical field of sluice valves. According to the sluice valve convenient to maintain, the separated transmission of the valve rod and the valve plate is achieved, the manual torsion of the valve during rotation is reduced, the operation performance of the valve body is improved, the conventional maintenance needs to be closed to close a main valve, the portability of maintenance is improved, themaintenance efficiency is improved, and meanwhile, the waste of water resources is reduced.