In this paper,Boao District in Hainan Island was chosen for case study,the landscape ecological characteristics of the coastal ecotone were analyzed.Five indices such as landscape diversity,landscape dominance,landscape fragmentation,landscape isolation and ecological risk were identified to analyze quantitatively the rela tionship between the development and construction activities and landscape pattern.The results indicate that the density of these activities is to a certain extent relative to the landscape fragmentation,it is the driving power resulted in variations of the landscape patterns.Based on the theory of landscape ecology,the paper puts forwards some suggestions for landscape ecological construction.