Abstract: The development of strategic emerging industries has become one of the critical driving forces to accelerate China's economic growth. Based on the perspective of technology diffusion, this paper discusses the characteristics of the development of strategic emerging industries, introduces technological innovation capability and technology similarity, and analyzes the formation process and evolution mechanism of strategic emerging industries’ innovation network. Then the evolution model is constructed and simulated based on the preferential mechanism. The results show that: the evolution of strategic emerging industries’ innovation network take on the “edge - multi-core” hybrid structure; with the expansion of the scale of the innovation network, the average path length of the network is gradually shortened while the clustering coefficient is gradually increasing, so the efficiency of information and technology are improved. Finally, using the data of Chinese new energy automobile from 2005 to 2015, this paper demonstrates the effectiveness of simulation model.