关键词: 技术经济评价, 指标权重, 线性加权, 评价模型

Abstract: With the fast development of economy in our country，the consumption of mineral resources increases greatly，so it is very significant to develop overseas mines and utilize the mineral resourcesThe investment for developing overseas mineral resources entails high risk，thus it is necessary to have the technological and economic evaluation before the investmentIn this paper，by setting up an evaluation index system and using the expert consultancy method to determine the weight of the indexes，a linear weighted evaluation model is proposed，and then it is used to make the technological and economic evaluation for an overseas mineAfter making several practical programs according to this mine，the best option is chosen through analyzing the evaluation results of the modelThis model can be widely used in the technological and economic evaluation for developing mineral resources.

Key words: Technological and economic evaluation, Index weight, Linear weighted, Evaluation model