Abstract:Abstract: Based on the landing point to statistical analysis of Tropical Cyclones in NanaoIsland during the last 30 years, The results show that : the last 30years in NanaoIsland by TC frequency is 2.4 every year. Landing in Xiamen - Fuzhou area of tropical cyclones, the influence on NanaoIsland is heavy rain and small wind ; landing in Xiamen - Huidong area of tropical cyclones, the influence on NanaoIsland is heavy and strong wind; landing in Huidong - Yangjiang area of tropical cyclones, the influence to NanaoIsland is less rainfall but strong wind. The relevant departments can be targeted preventive measures.