Abstract: Multiple aquifers, specially the Luohe formation aquifer with good water yield property are overlying the No.4 coal seam in Gaojiapu coal mine, there is no obvious aquifer in the upper and lower sections of the Luohe formation, and it is difficult to observe height of water conducting fractured zone, so the determination of the water inflow calculation model is crucial.According to the water output data of Gaojiapu coal mine, in the case of high conductivity uncertainty of the Luohe formation aquifer, analyzing partially penetrating well model for water inflow into the shaft wall under two conditions and overflow model by comparing with the actual water inflow from the mine, it is determined that the partially penetrating well model of segmented water is most suitable.The model is proved to be reliable by verifying the measured water inflow of worked surfaces.It can be used for reference to the calculation of mine water inflow in the future.