Abstract: The mineral resource evaluation of integrated exploration area can be used to estimate the effect of investment on geological prospecting work and the intrinsic economic value of integrated exploration area.Based on the comprehensive analysis of recent achievements on the integrated exploration in QingHai province,this paper have selected the evaluation index and constructed the evaluation modle.By quantized The evaluation index,such as geology,minerals and economy,we have estimated and evaluated the Value of Mineral Resources and current situation of integrated exploration area,and provided the guide for the next prospecting work.On this basis,we have evaluated and analyzed of Dachang gold mine.The analysis results showed as follow:this area was in the Last stage of growth,and Gradually began to enter the decline stage.Currently,the gold ore field have been the basic forming,the superficial prospecting result has been appearance.The space of geological prospecting is limited,and the deep potential prospecting is more larger.In the future work,We suggest to increase the deep drilling project,and develop the prediction work on deep resource.