Abstract: Study on HBO's economic connection can not only promote integrated construction and coordinated development of city group, but also help sustainable development of resource-based city group. This paper, based on a case study on HBO city group, uses social network method to establish HBO's economic connection network, and measures its network density, centrality, and inner condensation sub-group. Results reveal that their economic connection is increasingly close and complicated, not high in network density compared with developed city group. Their economic development is asymmetric and imbalanced, but inside city group direct connection among each member is steadily increasing, which may form condensation sub\|group out of locality limit.  

Key words: economic connection, social network analysis, HBO city group 

摘要： 分析呼包鄂城市群经济联系不仅对推动城市群一体化建设和促进协同发展具有重要意义，同时也有利于资源型城市群经济可持续发展。以呼包鄂城市群为研究对象，采用社会网络分析方法构建呼包鄂城市群经济联系网络，并从网络密度、网络中心度和内部凝聚子群进行测度。研究表明：呼包鄂城市群经济联系越来越密切且趋于复杂化，相较于发达城市群网络密度并不高，城市群经济发展存在不对称、不均衡性，但城市群内部各成员间直接联系逐步提升，能够摆脱地域限制组成凝聚子群。 

关键词: 经济联系；社会网络分析；呼包鄂城市群