In underground mining, a hydraulic hoisting system can increase the hoisting capacity without necessitating the sinking of new shafts. There is generally a considerable inflow of groundwater which has to be pumped out. When the mine dewatering installations are integrated with a hydraulic hoisting system, the cost of power needed to pump out the groundwater is excluded from the costs of hoisting, compared with other modes of transporting the solids to the surface. Different hydraulic systems are analyzed and leading parameters such as total energy consumption and underground water availability, are related systematically to representative solid to water mass ratios and pump efficiencies. The economical effectiveness of integrating the mine dewatering and the hydraulic hoisting system is demonstrated, and finally some schematic layouts of applications are presented