The deposited volume of each check dam layer was determined by investigating the status of check dams on the loess plateau , digging typical check dams , carrying out the sectional analysis , utilizing reservoir storage and measuring deposited thickness of a layer. Single erosive rainfall was ascertained according to the principle of“more rain , more sediment yield”. Correlation analyses of deposited volume with the maximum rainfall intensity in thirty minutes (I30) , rainfall amount (P) , rainfall erosivity (R) and average rainfall intensity ( I) were made , the re-sult of which indicated close relationships among them. Relationships between deposited volume and the three in-dexes were then established. A good fitting plot between calculated result and observed data was found. The re-search offers a theory basis for the study of water2induced damage.