Abstract:Based on DEA method and spatial autocorrelation model, this paper calculates and analyzes the collaborative development degree and spatial evolution characteristics of Beijing-Tianjin-Hebei urban agglomeration from 2007 to 2020.The research found that: (1) the average degree of collaborative development in Beijing-Tianjin-Hebei urban agglomeration showed a slow downward trend; (2) The changing degree of variation coefficient of the cooperative development in Beijing-Tianjin-Hebei region is relatively small, but the gap of the degree of cooperative development generally shows a steady rise;(3) From the perspective of spatial distribution, the degree of coordinated development of the Beijing-Tianjin-Hebei city cluster is higher in the north and lower in the south, and decreases from inside to outside. This paper further conducts spatial differentiation and autocorrelation analysis evaluation of the degree of collaborative development in Beijing-Tianjin-Hebei urban agglomeration from both temporal and spatial dimensions, compares the status of the degree of collaborative development of various cities horizontally, and explores the spatial evolution law and characteristics of the degree of collaborative development vertically, Analyze the causes of the development and change of the coordination degree in each city, It aims to further promote coordination within the Beijing-Tianjin-Hebei region, in order to enhance the overall degree of collaborative development in the Beijing-Tianjin-Hebei urban agglomeration and achieve high-quality economic development, and also make efforts to make Beijing-Tianjin-Hebei region a pilot and demonstration zone for Chinese-style modernization.