[eng] This research presents an overview on tourism and aviation industry of Hainan and Majorca. It makes a comparison of aviation of two islands from different aspects. Knowing the data of passengers and airlines operated in the airports of each island, we use both qualitive and quantitative method to make different kinds of charts in order to illustrate the connectivity of air industry between two islands. Besides, I use SWOT analysis to analyze the strength, weakness, opportunity and threat of both islands. Based on data collected and analysis, we reach a conclusion