The work aims to discuss the intellectual property protection and management of design results in cruise design, promote the improvement of cruise design ability in China, and provide a reference for other types of design. The work classifies various design achievements in cruise design, analyzes six types of design objects, including appearance modeling, external decoration, space design and decoration, shipboard products, guidance system and personal information terminal, and discusses the corresponding forms of intellectual property protection. Considering the characteristics of design results, the maximization of design value, the rationality of design workflow and corresponding legal provisions, this paper puts forward a reasonable and feasible design intellectual property protection and management strategy. Combined with design practice, this paper puts forward the protection path, management strategy and workflow of design intellectual property, which can be applied in the implementation of design projects by designers or design management by design enterprises.