This paper focused on the development of entry strategies to Japanese ship-management market. We carried out survey about Japanese ship-management marker to experts of shipowner and ship-management companies. Based on this survey, we analyzed choosing factors of ship management companies by fuzzy decision making analysis. Experts of Japanese shipowner and ship management companies selected factor about quality of ship management is most important, that followed by factors about cost-cut ability, possibility of able seafarers, quick response to shipowner`s request. Therefore, we suggested follow four measures for entering Japanese market by Korea ship-management companies. i) comprehensive approach to cost competitiveness, ii) specialization of managing fleet, iii) developing localization and partnership with Japanese companies, iv) choosing target area based on market entry strategy.