The paper studies the relationship characteristics of manufacturing industry through input-output table of 2007 from National Statistical Bureau and uses social network analysis method based on direct con-sumption coefficient table in input-output table to analyze the network effect and network structure in classified manufacturing industry, which demonstrates the internal mechanism inside industry network structure. General-ly, there is an increasing tendency in influence coefficient and response coefficient in manufacturing industry sector. The influence coefficient of high-tech industry is increasing significantly and so does response coeffi-cient. The response coefficient of heavy industry stands on the front line. In light industry, response coefficient does not change significantly except textile industry.% 利用国家统计局颁布的《2007年中国投入产出表》，考察我国制造业产业关联特征；并基于投入产出表中直接消耗系数表，运用社会网络分析方法，对制造业细分行业间的网络效应和网络结构特征进行分析，揭示产业间网络结构内在机理。总体来看，制造业产业部门的影响力系数、感应度系数均呈增长的态势；高新技术产业影响力系数明显上升，感应度系数也有所上升；重工业部门感应度系数排名稳居前列；轻工业中除纺织业外，感应度系数变化不大。
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