[Objective] To estimate the function value of soil and water conservation service in order to provide scientific basis for the comprehensive control of soil and water loss and the sustainable development of soil and water conservation.[Methods] Soil and water conservation function was defined

and the reference method

market value method and alternative cost method was used to estimate the service value of soil and water conservation function in Dongzhi tableland

Qingyang City of Gansu Province.[Results] The total value of service function of soil and water conservation was 1.94×109 Yuan

and the value of soil and water conservation service function of land and water conservation measures was 4.32 Yuan/m2. Among them

the value of carbon sequestration and oxygen release service was the highest

amounting to 7.05×108 Yuan

followed by the functional value of improving species diversity

which was 5.34×108 Yuan

and the least was the function value to preserve soil fertility

which was 3.37×107 Yuan.[Conclusion] Soil and water conservation measures in Dongzhi tableland of Qingyang City have high value of functional service. In the future

relevant water and soil conservation measures should be maintained or improved to give play to greater value of functional service.