Dongjiakou port area of Qingdao port is a newly developed port area, and the marine structures of the ore terminal is the first 400 000 DWT bulk cargo berthing pier, which is characterized by complicated wave and flow conditions, large engineering volume, great technical difficulties, and unfavorable construction conditions. We carried out a study on key technologies concerning the site selection, natural conditions, plan layout, handling technology, hydraulic structures, foundation treatment, as well as energy saving and environment protection, and the results may serve as a reference for the construction of open-type terminals.