With the improvement of people's living standards and the rapid development of tourism, cruise tourism is favored by more and more people.. Under the background of the construction of Hainan Free Trade Port, Sanya cruise industry has ushered in new development opportunities.. Through field research and literature review, the advantages and disadvantages of Sanya cruise home port is analyzed under the construction of Hainan free trade port, the opportunities and threats was discussed , and the strategies and suggestions to promote the development of Sanya cruise home port to help the healthy, sustainable and rapid development of Sanya cruise industry are put forward.