Based on the upstream and downstream relationship of global value chain, this paper constructs two types of global digital service industry technology cross-border spillover networks, and explores the temporal and spatial evolution characteristics of digital service industry technology transnational spillover networks using complex network analysis method from the overall, local community and individual levels. The results show that the scale of the two types of spillover networks continues to expand, and the spillover efficiency continues to improve, but the distribution of the networks is not uniform, there are obvious agglomeration effects and“small world” characteristics. The network pattern was dominated by Germany, the United States, the United Kingdom and Luxembourg, and gradually changed to China, the United States, Germany and Luxembourg. Although China has strong direct influence, counter-control and spread influence in the two types of networks, the intermediary control is significantly weaker than that of the United States, Germany and Luxembourg. In terms of spillover paths, China Hong Kong has the largest spillover to Mainland China , Luxembourg has the largest spillover to European economies such as the United Kingdom and Germany. From the perspective of spillover correlation, most Asia-Pacific economies such as China, the United States and Japan belong to the main beneficiary sectors and play the role of“absorbers” in the network, while China Hong Kong, Singapore and most European economies such as Austria, Switzerland and Luxembourg belong to the two-way spillover or main spillover plate and play the role of "contributors" in the network.