Abstract: From the analysis of the rigidity pipeline sea mining system and flexible pipeline sea mining system,it is clear that the latter is more applicable for mining mine from the seabed than the former.The equipment of vessel combined with pump is designed for the use in the sea mining system of flexible pipeline and it is suitable for transporting mine from the seabed to the mining ship,and the industrial application of the flexible pipeline sea mining system becomes possible due to the progress achieved in key transporting technique.