Abstract: The development of the additive manufacturing technology in various industries tends to be mature, and the application development in the field of ships has also made extensive progress. For the application of additive manufacturing in the shipbuilding field, the technical principles, technical applications, design evaluation, approval and inspection of the powder bed fusion, directed energy deposition, and wire arc additive manufacture used in the marine field. The necessity of the standard system in ship additive manufacturing technology is verified through the analysis and research of the CCS Inspection Guidelines for Additive Manufacturing and the new standard being compiled by the International Association of Classification Societies (IACS).