Abstract: The coupling coordination model and entropy method were used to analyze the traffic network accessibility and urbanization development level of 8 states （cities） along the border of Yunnan province in 2019, and the coupling coordination degree was measured and the coordination types were divided. The results show that the accessibility coefficient of the traffic network in border states （cities） of Yunnan province is between 0.82 and 1.17, and the traffic network system needs to be further developed and improved; The comprehensive development level of urbanization is between 0.05 and 0.20, and the level of urbanization lags far behind the accessibility of transportation network. The degree of coupling coordination between transportation network and urbanization is at a medium level of development, showing obvious regional differences; According to the degree of coupling coordination, the 8 states （cities） along the border of Yunnan province are divided into 2 development categories and 5 development characteristics, and the coordinated development paths are proposed for regions with different development types.

Key words: transportation network, urbanization, coupling coordination degree, the border areas of Yunnan province