In the sandy rivers of our country

the abrasion of turbines on the Yellow River is the most representative.The abrasion is close related with the parameters

the models

the specific speed

the operation environment

the operation conditions

and water head of turbine and so on.According to the abrasion law

the comprehensive measures are adopted to defend the abraded turbines

which are coating protection

using properly the measures of reservoir sediment releasing

optimizing the configuration of turbines

selecting properly the type of turbine

optimizing materials and so on

which gains good effects.To summarize the abrasion law and to explore new prevention measures have important significance to advance the operation and management levels of hydro stations on sandy rivers in our country.