It is very necessary to promote the construction of key ecological function areas to protect national ecological security because of its relatively fragile ecosystem and important ecological value. From the perspective of ecology-agriculture-urban space, this study aims to make dynamic comparative analysis of the coordinated development levels between 2008 and 2018, and explore the characteristics of spatial utilization, existing problems and the potential of development in Tacheng Basin. The results indicate that:
1) The coupling coordination degree of ecology-agriculture-urban space in Tacheng Basin is still in low-level state. However, there exist some disparities between 2008 and 2018. The maximum value is only 0.434 in 2008 and it increases to 0.492 in 2018.
2) The ecology-agriculture-urban space of Tacheng Basin has greater development potential with the characteristics of spatial agglomeration distribution. Ecological, agricultural and urban spaces are interconnected and interact with each other, but the emphasis on developmental direction is different with respective characteristic resources.
3) Regional interconnectivity and integration development is an effective way to realize the coordinated development of ecology-agriculture-urban space. Therefore, according to the analytical results and advantages for development, we have proposed corresponding policy recommendations from the perspective of ecological protection, economic transformation and regional division and cooperation.