Successfully penetrating a defended beach is the most difficult phase of a amphibious operation, the purpose of this article is to identify the influencing factors on anti- amphibious operations and their importance. According to the nature of the subject, the type of applied research is the descriptive research method with a mixed approach and the method of collecting field and library information.
After studying the literature, the background of the research and interviewing 5 experts, the influential components in anti- amphibious operations were extracted by the researcher and an expert panel was formed to validate them, and among the 20 factors counted, 16 factors were approved, and then a questionnaire with The five-level Likert scale was set with 15 questions and distributed among 50 expert employees who were selected by purposive sampling. The results of this research show that, in order of priority, 15 factors: having the doctrine of anti-landing operations, offensive minelaying capability and defensive minelaying capability, information, command relations and coordination between ground, air and naval commanders, having long-range precision missiles, compliance The principles of fully passive defense, sea control and air superiority, having a spirit of martyrdom, effective coastal defense, having coastal fortifications, effective air defense, having an obstacle plan on the coast, complete familiarity with the techniques of psychological operations and anti-psychological operations, determining target priorities and the knowledge of marine characteristics have a great influence on anti- amphibious operations.