中文摘要：

产学研合作是国家创新系统的重要组成部分，为了保证产学研成果能够有效的转化，国家各级部门制定了相应的产学研成果转化政策。以我国1985-2013年颁布的651条产学研成果转化政策为研究样本，运用社会网络分析方法，绘制了不同阶段主体合作网络图谱，对产学研成果转化政策的基本特征、主体合作网络结构进行了探讨。并且通过广度-深度二维矩阵分析了主体在网络中的角色演变。最后通过调整网络中的节点，实证分析了网络中核心节点的功能演变。研究表明，我国产学研成果转化政策制定主体众多，网络规模呈现扩大的趋势，整体结构不断优化，核心节点影响力不断增强，整体网络密度有所下降，协作沟通有较大的空间。

英文摘要：

U-I collaboration is an important part of national innovation system, in order to guarantee the U-I col-laboration output can transformation effectively, all the levels of the state formulate the appropriate policy. This ar-ticle takes 651 policies from 1985 to 2013 as the research sample, using social network analysis, drawing the dif-ferent stages＇ cooperation network mapping, the basic characteristics, the main body of achievement transformation policy of cooperation network structure are discussed in this paper. Then constructed the two-dimensional matrix with cooperation breadth and cooperation depth. At last, this article empirically analysis the function of the core node in the network evolution by adjusting the nodes in the network Research shows that our country numerous achievements transformation of production, study and policy making subject, presents the tendency of expansion of network size, the overall structure of optimization, influence the core node, overall network density declined, col-laborative communication has a larger space.