Compiled by the Beijing Development Institute of Peking University, the Beijing-Tianjin-Hebei Coordinated Innovation Index (2026) constructs the index system of the Beijing-Tianjin-Hebei coordinated innovation index from three spatial levels: the overall Beijing-Tianjin-Hebei region, the three provinces and municipalities directly under the Central Government, and 13 prefecture-level and above cities. The index system includes 5 first-level indicators (innovation capacity, scientific research cooperation, technical connection, innovation performance and innovation environment), 11 second-level indicators and 22 third-level indicators, focusing on measuring and analyzing the development trend of the Beijing-Tianjin-Hebei coordinated innovation index from 2013 to 2024.