It is known from the principle that the pump–vessel combined ore lifting method has high head, large ores lifting capacity, and long-term working reliability. When applied to the deep-sea rigid pipe mining system, the main pump and power equipment installed on the mining ship is more convenient to operate and maintain. According to Bernoulli’s equation and two phases of hydrodynamics theory, the ore lifting equipment parameters have been calculated and analyzed. It is known that the pump head of sea mining system is and that of sea mining system is . It is known that the pump–vessel combined lifting method is feasible in both theory and practice, therefore it is an ideal ore lifting method for a deep-sea rigid pipe mining system.