After more than a century of development and application of structural concrete materials, the internal and external causes of its failure mechanism and the corresponding strengthening measures, such as the use of steel fiber concrete, reinforced concrete and prestressed concrete for in-depth research, so that this material can not only replace steel structure, save materials, but also used in areas that steel can not be involved, such as nuclear power plant containment, offshore oil platform, oil storage Cans, etc.; The application prospect of concrete in ocean engineering is discussed by analyzing the failure nature, restraint effect and strengthening measures of concrete.