[Objective] This study aimed to put forward some new ideas and methods for identifying the grade of control standards for soil and water loss resulted by poroduction and construction projects

which can be used to revise the current national standards

in order to provide references for the implementation of scientific management. [Methods] This research identified the grade of control standards by evaluating the influence of soil erosion and the soil and water conservation sensibility of projects.[Results] It suggested that various soil and water conservation factors in those projects should be considered to determine the grade of control standard

such as regionalization

key areas

ecological functional importance

influence degree and the regional sensibility. The higher control standard grades are for the higher influence and sensibility. [Conlusion] The numbers of projects which perform different standard grade show an ideal "pyramid" shape distribution pattern. It can fully reflect the differences in variety projects

and is easy to be handled and judged.