Abstract: This paper assesses the value of tourism economic contacts among cities in Hunan province by the gravity model，using social network analysis method to construct the tourism economic contacts network. It firstly classifies， compares and positions the roles and functions of destinations by the density analysis and core-edge model from the theory of Social Network Analysis. Then it analyzes those functions by the centralization analysis indicators quantitatively. It is suggested that fourteen city destinations in Hunan could be divided into five role types， namely， core tourist destination， secondary tourist core， important tourist destination ，common destination and marginal destination. Finally， some suggestions to optimize the tourism economic network of cities in Hunan province are put forward.

Keywords: tourism economic contacts; the role of tourist destination; social network analysis; Hunan province

摘要： 运用引力模型计算湖南省城市空间经济联系值，采用社会网络分析方法构建湖南省城市旅游经济联系网络，结合密度分析、中心度分析、核心—边缘分析，对湖南城市旅游地旅游经济联系网络结构中的14个地级市、州的功能地位进行了初步的定位，然后结合中心度测量指标对各个城市旅游地的角色定位进行了量化分析，将湖南城市旅游地初步划分为5种角色类型，即全省旅游枢纽、次旅游枢纽、重要旅游目的地、一般旅游目的地和边缘性旅游目的地，并在此基础上提出了优化旅游经济网络的对策。

关键词: 旅游经济联系, 角色定位, 社会网络分析, 湖南