Abstract: As an indispensable natural resource for human survival and development, the rational coordination use of water resources is the main point to achieve sustainable development. In this paper, the spatial and temporal pattern of the coupling relationships among water resources, economic society, ecological environment and smart technology system in 12 cities in Hubei province from 2008 to 2017 were analyzed by extended coupling coordination degree and obstacle degree model. The results showed that the coupling coordination degree presented the significant rise-fall-up trend during the evaluation period. The current average coordination degree is 0.635 5 and in a moderate coordination level. In the spatial distribution, the coordination degree presented three evolution states. The coordination degree in the southeast area of China is the highest, while in the western area it is steadily rising, and in the central-north area it fluctuates greatly. The system obstacles are ranked as water resources, smart technology, ecological environment and economic society. The southeast and southwest areas belong to smart technology lagged, and the northwest area belongs to water resources lagged.

Key words: water resources, economic society, ecological environment, smart technology, coupled coordination degree, obstacle degree