Abstract: In order to scientifically determine the resource development value of the eastern ore body of a mine and support the mining planning of mining engineering，the physical and chemical properties of the ore body are systematically studied through on-site drilling coring and indoor multi-index test. Aiming at the problem that the effect of mineral processing is affected by the combination of ore body's hardness， Mo grade and pyrite content，the analytic hierarchy process (AHP) is used to construct a three-level evalu‐ ation system to quantify the comprehensive effect of various factors on the development value of ore body. The evaluation results show that Mo grade contributes the most to the comprehensive score (weight 0.639)， which is the core index to determine the economic value of the ore body. The pyrite content (weight 0.250) and the Platts hardness (weight 0.111) are second，and both too high are not conducive to improving the quality and efficiency of mineral processing. The comprehensive score of drilling shows that the ore bodies around ZK1-1 hole 600.00~610.00 m and ZK2-2 hole 620.00~630.00 m have higher scores，which can be used as priority mining areas to improve resource utilization efficiency. The low score interval needs to be combined with geological survey to further evaluate its economic development feasibility.

Key words: ore body development value, drilling coring, analytic hierarchy process