Today, the world's maritime trade is increasingly developed, and marine refrigeration equipment has attracted more and more attention. At present, there are many kinds of ships with refrigeration equipment in my country, such as reefer ships, liquefied gas ships, etc. The refrigeration equipment on these ships is part of its core .Maintenance management and failure analysis of marine refrigeration equipment are particularly important. Once a failure occurs, the staff responsible for this on board should immediately use their professional knowledge and practical experience to troubleshoot and solve the problem. Even in normal times, pay attention to marine refrigeration equipment Maintenance management of refrigeration equipment to prevent unnecessary problems. The article mainly analyzes and discusses the maintenance management and fault analysis of marine refrigeration equipment through specific cases, focusing on the maintenance management and fault analysis of marine equipment from the perspective of refrigeration. Rationalized suggestions and countermeasures are put forward on both sides, aiming at dealing with the problems that arise in the two situations of routine maintenance and failure.