Multi-coring drill for cobalt-rich crusts is an important equipment for the exploration of deep seabed mineral resources and survey of deep seabed geology etc.,which can implement coring-drilling many times if it is placed to seafloor once.The first set of multi-coring drill for deep seabed shallow strata was successfully developed by Changsha Institute of Mining Research,and has been applied successful in Pacific experiment.In this paper,the basic mechanisms and technical specifications of the multi-coring drill were introduced.The technical difficulties and innovations,especially the multi-coring technology,about the design of the core sampling drill were analyzed.