Abstract:The development of strategic emerging industries not only depends on technology competition, but also requires the synergistic development between industrial technology ecosystem and innovation ecosystem. The maturity of strategic emerging industries, intellectual resources endowment and industrial development potential are constructed as subsystems from the perspective of industrial technology ecosystem, and the technology innovation, science and technology finance and innovation diffusion are incorporated into the innovation ecosystem to establish the synergistic development index system. Taking strategic emerging industries in Beijing as an example, the coupling and coordinated development between industrial technology competition and innovation ecosystem is measured, and the time-series characteristics of synergistic changes of eight strategic emerging industries are analyzed. The results show that: (1) Industrial development potential has the greatest influence on industrial technology; (2) Scientific and technological innovation is the core factor of industrial development and occupies the key ecological position of the Innovation Eco-Communities; (3) Among the strategic emerging industries in Beijing, seven categories, including energy conservation and environmental protection industry, new generation of information technology industry, biological industry, high-end equipment manufacturing industry, new energy industry, new materials industry and new energy vehicle industry enter the grinding stage, while the digital creative industry is in the antagonistic state, but all industries have entered a highly coordinated stage; (4) Policy recommendations are proposed including the government play the guiding role continuously, build a dynamic competition-cooperation policy system, and improve the innovation ecology policy system.