Abstract:From the perspective of niche, this paper analyses the development and coupling relationship of regional innovation ecology in Beijing-Tianjin-Hebei from 2006 to 2017. The research finds that the development of innovation resource control ability in Beijing-Tianjin-Hebei is not balanced, Tianjin has become the “center” of competition for innovative resources in Beijing, Tianjin and Hebei, Beijing’s regional innovation ecology develops rapidly while Hebei’s develops slowly, and “Beijing-Tianjin” has the best ecological coupling state of regional innovation, while “Tianjin-Hebei” is better than “Beijing-Hebei”. Therefore, Tianjin should become the main synergistic object of innovation and development in Hebei Province. It is necessary to promote sustainable and rapid development and effective coupling of regional innovation ecology in Beijing-Tianjin-Hebei by improving the ecological composition system of regional innovation, improving the efficiency of transformation of regional scientific and technological achievements and enhancing the capacity of regional synergistic innovation.