庆阳市地处陇东黄土高原区自然资源丰富，是全国重要的能源供给区之一，在推动西部大开发、大保护、高质量发展及生态环境保护有着举足轻重的地位，探索分析三生空间景观生态风险格局及耦合协调性具有深刻意义。本文以陇东黄土高原区庆阳为研究对象，运用土地利用转移矩阵、景观生态风险评价模型、耦合协调度模型等方法探索分析2000—2020年土地利用结构变化、基于三生空间评价景观生态风险格局及三生空间耦合协调性。结果表明：（1） 2000—2020年庆阳市生态与生活空间面积呈逐年稳步持续上升趋势，而生产空间面积呈现逐年下降趋势。（2） 庆阳市景观生态状况整体呈低风险状态，且风险程度呈现“东低西高”的分布规律。（3） 三生空间耦合协调度整体呈向好发展且集中，呈现“南高北低”的分布特征，耦合协调区域面积呈逐年持续扩张态势而不协调区域面积呈逐年缩减。（4） 在利用自然因素和社会经济因素分析三生空间耦合协调性，得出社会经济因素影响较大。因此将驱动因子与三生空间的需求和特征相结合，优化三生空间布局以促进景观生态风险格局协同发展，提升区域景观生态安全性，推进庆阳市生态经济可持续发展。

Qingyang City is located in the loess plateau region of eastern Gansu Province, which is endowed with abundant natural resources and serves as one of the key zones for supplying energy to the country. It plays a crucial role in fostering development, safeguarding ecological integrity, promoting high-quality growth, and enhancing environmental protection within the western region. Exploring and analysing the ecological risk patterns and coupled the coordination of the production-living-ecological space landscapes is of profound significance. This study focused on Qingyang, located in the loess plateau region of eastern Gansu Province, employing methodologies such as land use transfer matrix analysis, landscape ecological risk assessment models, and coupling coordination degree models to investigate and analyze changes in land use structure from 2000 to 2020. This work also incorporated the patterns of landscape ecological risk, and the degree of coupling coordination among production-living-ecological space based on comprehensive evaluation. The following results were obtained: (1) Over the last two decades, the ecological and residential space in Qingyang City has consistently increased year after year, whereas the area designated for production has exhibited a gradual decline. (2) The overall landscape ecological condition of Qingyang City is in a low-risk state, and the distribution of the degree of risk is “low in the east and high in the west.” (3) The degree of coupling coordination of the production-living-ecological space is well developed and concentrated, presenting a distribution of “high in the south and low in the north.” The coupling coordination area is expanding continuously year by year, while the uncoordinated area is shrinking. (4) By analyzing the coupling coordination of the production-living-ecological space using natural and social economic factors, it is concluded that socioeconomic factors have a more significant impact on this. Therefore, the driving factors are integrated with the needs and characteristics of the production-living-ecological space, and the layout of the production-living-ecological space is optimized to facilitate the coordinated development of the ecological risk pattern of the landscape, enhance the regional ecological security of the landscape, and advance the sustainable development of the ecological economy of Qingyang City.