Abstract: Based on observed climate data from 1971 to 2000, the characteristics of climate resources in Hainan and Taiwan islands was analyzed and compared. Results showed that radiation, heat and water resources in both islands were abundant. In the south of two islands were with highest temperature and hours of sunshine, which were lower in the middle mountain areas of two islands. The north Taiwan island and middle mountain areas of Hainan island had most precipitation and rainy days, which in the west of two islands had least.The tropical cyclone, the seasonal drought, the low temperature cold damage were the main agro-meteorological disasters both in the Hainan and Taiwan islands.

Key words: Hainan island, Hainan island, Taiwan island, Agricultural climate resource