Owing to high head power plant's special requirement for diversion sediment control,this paper optimized the structure layout of intake diversion sediment control and made reasonable choice of reservoir operation method to ensure that the turbine sediment is within the allowable range(especially for coarse sand d>0.1mm),to prevent the wear of harmful particle to turbine and over-current components.Sediment mathematical and physical models show that it is feasible to adopt reservior coarse suspended sediment...