The invention relates to a coal mine underground reservoir position selection method based on water resource transferring paths. The method comprises the steps that a geologic structure is explored before coal mine exploiting; according to the geologic structure, areas with stable geologic structures are taken as alternative areas; water diversion fissure zone heights of various alternative areasare calculated, and the alternative areas with the water diversion fissure zones reaching overlying water-bearing rock stratums after stable exploiting are taken as new alternative areas; judgement and flow distribution statistics are carried out on the water resource transferring paths, and the alternative areas with flow greater than preset flow are selected as new alternative areas; disintegration resistance indexes of rock samples and permeability coefficients of fractured rock masses in the new alternative areas are measured, and the alternative area with the disintegration resistance index greater than or equal to a preset disintegration resistance index value and the permeability coefficient less than or equal to a preset permeability coefficient value is selected as a constructionposition of a coal mine underground reservoir; the coal mine is exploited, and the coal mine underground reservoir is constructed.