Abstract: This paper uses incoPat patent information platform to retrieve the patent assignment data between 42 "double first-class construction" universities and enterprises, and adopts the social network analysis method to explore the overall network structure characteristics, individual network structure characteristics, patent assignor and technology two-mode network structure characteristics and evolution situation. The research finds that :(1) the number of nodes, edges and connections in the network are increasing, the network density is decreasing, patent transfer relationship between university and enterprise is mainly in the form of "one to one", and the network is gradually evolving from "one branch" to "everywhere". (2) Engineering universities and comprehensive universities perform well, and most of universities urgently need to improve their technology transfer capacity.The breadth and depth of technology transfer in important energy-oriented enterprises and strategic emerging technology enterprises is relatively high, and the number of patents obtained by most enterprises from universities of "double first-class construction" needs to be improved (3) G01N, H01L, A61K, G06F and H04L have been the hot technology fields in the universities-enterprises patent transfer, and the technology transfer in key universities of science and engineering involves a wide range of technology fields. Finally, from the three levels of government, university and enterprise, this paper puts forward countermeasures and suggestions to promote university-enterprise patent transfer.