Abstract: The paper introduced general principle of structure model and application of AHP in model selection of "three machines" of fully mechanized working face, put forward decision-making model for equipment matching in fully mechanized working face, which took the minimize power consumption as the most priority criterion layer. The method that using AHP to research model selection of equipments of fully mechanized working face not only solves the problem of large power consumption, waste and unreasonable matching of "three machines", but also improves rationality and scientificity of decision-making and achieves the energy-saving goal.