Abstract: The coordinated development of construction land use efficiency and urbanization is conducive to achieving land conservation and intensive use, as well as sustainable urban development. On the basis of constructing an evaluation index system, the paper uses extreme value method, entropy weight method, comprehensive index method, and coupling coordination model to study the coupling relationship and influencing factors between construction land use efficiency and urbanization in Yuxi City from 2010 to 2020. The results show that (1) from 2010 to 2020, the coupling coordination level between construction land use efficiency and urbanization level in Yuxi City is relatively low, with an average coordination level of only 0.39 in the city, indicating a moderate imbalance overall; (2) the regional imbalance between the utilization efficiency of construction land and the coordinated development level of urbanization in Yuxi City is obvious, showing a center periphery structure with high in the middle and low in the surrounding areas; and (3) the spatial and temporal pattern of coordinated development between construction land use efficiency and urbanization in Yuxi City is deeply influenced by factors such as economic development level, industrialization level, government capacity, and technological investment. Yuxi City should adopt a differentiated strategy to promote the coupling development of construction land use efficiency and urbanization.

Key words: utilization efficiency of construction land, urbanization, coupling coordination, YuXi