This paper aims to investigate strategies to the control pollution from cruise ships based on an Analytic Hierarchy Process (AHP). Questionnaire experts (n=20) include those from cruise line companies, the Taiwan International Ports Corporation, the Maritime Port Bureau, shipbuilding plants, and scholars. Results indicate the top three key criteria, in order of importance, are policy, personnel and technique, and the top three key sub-criteria, again in order of importance, and are green port policy, cruise line policy and stakeholders. These results can be used in decisions made regarding pollution regulations for cruise lines, port operators, and other related stakeholders.