Topic 1: Coastal Engineering
Coastal protection engineering
Sea reclamation project
Harbor Engineering
Coastal Fishery Facility Engineering
Coastal tidal power generation project
River mouth management project
Marine dredging project
Environmental protection facility engineering
Topic 2: Offshore Engineering
Construction of offshore platforms
Artificial Island
Oil and gas exploration and extraction platform
Floating oil storage tank
Floating refinery
Floating airport
Topic Three: Deep Sea Engineering
Diving techniques
Undersea mining
Subsea Tunnel Engineering
Submarine pipeline 
Marine resource development and spatial utilization
Topic Four: Hydrology and Oceanography
Marine meteorology
Marine Geology
Satellite oceanography
Environmental Oceanography
Marine Resources Science
Topic 5: Energy Engineering and Energy Technology
Renewable energy engineering (solar energy, bioenergy, wind energy, nuclear energy, hydrogen, etc.)
Traditional energy engineering (traditional electricity such as coal, oil, natural gas, etc.)
Energy materials
Energy storage technology
Energy saving technology
Energy Chemical Engineering
Energy Security and Clean Use
Energy equipment and technology
Thermophysics and Thermal Energy Engineering
Topic 6: Environment
Pollution control
Ecosystem management
Solid waste management
Environmental management
Water resources management
Wastewater discharge management
Water quality modeling
Environmental Nanotechnology
Geographic Information Systems, Statistics, and Remote Sensing
Environmental remote sensing applications
GIS is used for environmental assessment
Wastewater and sludge treatment
Water treatment and reclamation
Industrial wastewater treatment
Wetland for wastewater treatment
Ecosystem restoration
Biological filtration of harmful gases
Soil remediation/plant remediation