| At present,tourism has become one of the industries with the strongest economic development momentum in China,but the huge economic benefits brought by tourism to people also bring some environmental problems and ecological risks to tourist areas.With people’s increasing interest in ecological and environmental issues,the study of the impact of tourism on ecological risks has also attracted widespread attention from scholars at home and abroad.This paper applies network analysis and landscape ecological risk theory to the analysis of ecological risks caused by tourism development in island tourist areas,which can provide a new research perspective and approach for the maintenance of ecosystem functions of island tourist areas and sustainable development of tourism.Today,with the booming tourism industry,island tourism has become a popular way of travel.However,due to the small area,relatively closed,low biodiversity,and single ecosystem structure,island islands are more vulnerable than terrestrial ecosystems,and are easily damaged by disordered and excessive tourism development.This article takes Weizhou Island tourism area as the research object.First,by extracting two types of tourism digital footprints of Weizhou Island online travel content and photos as of December 31,2018,using Ucinet6 to analyze Weizhou Island tourist tourism nodes,tourism The flow pattern and the structure of the tourism flow network are used to determine the main activity areas of tourists.Secondly,select the high-resolution remote sensing image data of 1990,2005 and 2018,and use RS / GIS technology as the main research method to interpret the landscape type of Weizhou Island tourist area,use Fragstats 4.2 to analyze its landscape pattern,and finally Establish an ecological risk index based on the landscape pattern,obtain a landscape ecological risk assessment index for the tourism activity area,tourism activity radiation area 1 and tourism activity radiation area 2 and compare the risks in these three areas to protect the ecological risk of Weizhou Island tourism area Control provides the basis.The research shows that:(1)Based on the tourism digital footprint,14 tourism nodes are obtained.Among them,the centrality of the tourist nodes such as the colorful beach,Crocodile Hill,Dishui Danping,Catholic Church,and the centrality of the tourist nodes such as Sanpo Temple and Mazu Temple are low.Mainly affected by popularity.(2)From the frequency table of Weizhou Island tourism flow,we can clearly see the size and direction of the tourism flow between the scenic spots.Among them,the tourist flow directions of the nodes of Crocodile Mountain,Dishui Danping,Shiluokou,Nanwan are very frequent.Mainly due to the proximity of geographical location.(3)There is a certain imbalance in the distribution of Weizhou Island tourism flow network nodes,and more tourism nodes are connected through core tourism nodes.The core nodes are represented by Dishui Danping,Caitan,Crocodile Hill,and Catholic Church,and serve as the gathering point and radiation point of Weizhou Island tourism.(4)From the perspective of the entire research area,the matrix landscape type of Weizhou Island is mainly cultivated land and forest land,and the proportion of cultivated land and forest land is as high as 70%.The landscape type characteristic of Weizhou Island tourism area is "three reductions,two increases",the area of ??woodland,waters and beaches decreases;the construction land and cultivated land landscape area increases;among them,the decrease in forest land area ranks first,and the increase in construction land area Times first.(5)Based on the difference in landscape scale and patch type scale,reveal the evolution pattern of the landscape pattern of Weizhou Island tourist destination.Overall,the number of landscape patches in Weizhou Island tourist area increased from 1990 to 2018;the shape of each landscape patch became more and more complicated;the fragmentation degree of landscape patches became more and more serious;landscape heterogeneity More and more obvious.From the perspective of the types of landscape plates,the connectivity of landscape patches of the same type shows a downward trend;the separation of homogeneous types generally increases.In terms of type dominance,the dominance of construction land and cultivated land increases,and the dominance of waters,woodlands and beaches decreases.The landscape heterogeneity value of Weizhou Island tends to become larger,and its types tend to diversify.It shows that the study area is getting more and more negatively influenced by human activities,the landscapestructure of Weizhou Island tourism area is becoming more complex,and the fragmentation of landscape pattern hides certain ecological risks.(6)Compare and analyze the landscape ecological risk assessment index of the tourism activity area,the tourism activity radiation area 1 within 300 meters around the tourism activity area and the tourism activity radiation area 1 beyond 300 meters,and draw the conclusion: from the horizontal distance dimension,The landscape ecological risk index of the tourism activity area in 2005 and 2018 is always greater than the landscape ecological risk index of the radiation 1 area,and the landscape ecological risk index of the radiation 1 area is always greater than the landscape ecological risk index of the radiation 2 area,that is,the closer to the tourism activity area Areas,the greater the ecological risk of landscape;from the time dimension,the landscape ecological risk index of tourism activity area,tourism activity radiation area 1 and tourism activity radiation area 2 all increase with the year,but the tourism activity area and tourism activity radiation The increase in the landscape ecological risk in Zone1 is much greater than that in the radiation zone 2 of tourism activities,that is,the development of tourism activities will increase the landscape ecological risk of Weizhou Island. 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