Due to the May 12th Wenchuan Great Earthquake, the area of soil erosion has been enlarged, the soil erosion intensity has accelerated, the amount of soil loss has increased and the economic loss is enormous. Compared the economic loss caused by soil erosion and water loss with the major index of economic construction, the ecological economic negative effect value can be clearly exhibited, therefore providing scientific basis for the after earthquake ecological reconstruction and the managerial decision maker of soil and water conservation. At first, the jeopardy of soil erosion and water loss and the amount of soil erosion was analyzed.Secondly, the monetary economic loss caused by the jeopardy of soil erosion and water loss was evaluated and calculated by useing the fundamental principle and methods of environment economy.The whole economic loss of soil erosion of Sichuan Province arrives at RMB 50.322 billion Yuan. At last, based on the analysis results of soil erosion and water loss after quake, some countermeasures related to the recovering and reconstruction of soil and water conservation were put forward.
