Topic 1: Coastal Engineering
Coastal protection engineering
Land reclamation project
Port engineering
Coastal Fishery Facility Engineering
Coastal tidal power generation project
River mouth management project
Ocean dredging project
Environmental protection facility engineering
Topic 2: Ocean Engineering
Construction of offshore platforms
Artificial Island
Oil and gas exploration and exploitation platform
Floating oil storage tank
Floating refinery
Floating airport
Topic 3: Deep Sea Engineering
Diving technique
Undersea mining
Subsea Tunnel Engineering
Submarine pipeline 
Marine resource development and spatial utilization
Topic 4: Offshore Engineering
Construction of offshore platforms
Artificial Island
Oil and gas exploration and extraction platform
Floating oil storage tank
Floating refinery
Floating airport