Abstract: Value assessments for mineral resources ameliorate national economy system.First,the value system of mineral resources is presented in this paper.Second,both market value and net price methods are introduced to discuss loss value assessments for the mineral resources.Then,a case study from the main mineral resources of Jilin Province is examined,and the loss value is checked and calculated by market value and net price methods.Finally,comparative analysis is introduced to the result of value assessments.