Taking the ATI Barge Terminal project in Philippines with pile supported structure in strong seismic area as an example，this paper introduces the design innovations of marine structures such as the prefabricated U-type concrete channel structure，close-piled type wave wall，and triangle brace type single pile steel mooring dolphin，which solve the conflict problem of reinforcing bar at the cast-in-place joints of prefabricated structures.A special wave retaining structure adapted to strong earthquake area and a new steel structure wharf expansion scheme are proposed，which can provide reference for similar engineering design.