This course starts from the typical demands of construction materials for ocean engineering practice.It includes basic constitutive features, mechanical properties and characteristics of traditional building materials such as timber, masonry, concrete, steel and etc., together basic constitutive features, mechanical properties and characteristics of fiber reinforced plastics suitable for the unique ocean environment. Discussions on the chemical structure, crystalline structure, micro structure and interface structure for materials are presented.It also covers basic characteristics of composite structures composed of different materials. Finally, principles and methods of the material selection for ocean engineering structures that suit the unique and complex ocean environment are introduced.