To study coupling relationship between online information of A-level scenic spot and the development of tourist flow,information was researched by Baidu search engine. Using coupling coordination degree model,analyzed the coupling coordination development between A-level scenic spots and tourist flow of Chengdu city. The results show as follows. The coupling effect between them was significant and the coupling coordination degree increased year by year. The comprehensive development level of tourist flow was higher than A-level scenic spots. Online information development restricted the sustainable development of tourist flow. The information level of A-level scenic spots need to be improved,and then the coupling coordination development level increased steadily. And coupling coordination development was influenced by factors of the single system development level ,the rapid development of the internet and the varieties of types of the scenic spots.%为研究成都市在线景区信息与旅游流发展的耦合关系，通过百度（Baidu）引擎搜索成都市2006—2013年在线A级景区信息，借鉴物理学耦合协调度模型，定量分析成都市A级景区信息与旅游流两者之间的耦合协调发展状况。研究发现：成都市A级景区信息与旅游流之间耦合作用明显，耦合协调度逐年提升；系统综合发展水平结果显示，成都市旅游流的综合发展水平高于A级景区信息，说明A级景区信息提供较为滞后，一定程度上制约了旅游流的可持续发展；影响两者之间的耦合协调因素包括单要素的综合发展水平、互联网的快速发展及景区类型多样化等。
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