Abstract: Technological fusion has become an important trend and the inevitable choice of technology innovation for emerging industries. It is of great significance for emerging industries to accurately grasp the future direction of technological fusion in order to catch innovation opportunities and make innovation decisions. Based on the construction of patent IPC co-occurrence network and the analysis of existing industry’s technological fusion state, comprehensively considering the effects of multi-domain interactions on technological fusion, this paper proposes a direction forecast method by using the Katz index of link prediction. Through the empirical study of China’s electric vehicle industry, it is found that this industry’s technological fusion has transformed from multi-domain fusion in earlier stage into nowadays deeply fusing within specific fields, and presents the future technological fusion towards intelligentization and networking. This study may provide a reference to technology managing, innovation planning and policy-making of emerging industries.