本文通过对采矿工艺决策和斗轮挖掘机设计有重要价值的煤岩切割阻力的分析,介绍了根据现场实测确定煤岩切割阻力预测公式的方法,求解了适合我国未开发煤田煤岩切割阻力预测的公式,提出了生产露天矿扩采区煤岩切割阻力确定方法。并对我国元宝山、霍林河、昭通和小龙潭的煤岩切割阻力进行了预测和确定。 Based on the analysis of cutting resistance of coal and rock which is of great value in mining process decision-making and bucket wheel excavator design, this paper introduced a method to determine the prediction formula of cutting resistance of coal and rock based on field measurement, and solved the prediction of cutting resistance of coal and rock in China’s undeveloped coal field Formula, put forward the method of determining the cutting resistance of coal and rock in the expansion area of ​​production open pit mine. The prediction of the cutting resistance of coal and rock in Yuanbaoshan, Huolinhe, Zhaotong and Xiaolongtan of China is also made.