The study of land use spatial morphology is an important research direction of geography. In order to improve the understanding of the spatio-temporal changes of land use in Yongchuan District, Chongqing City, it provides theoretical basis and methods for corresponding planning and policy formulation. The fractal theory was used to discuss the land use types in Yongchuan District of Chongqing City from 2005 to 2015, and the fractal dimension (D) and stability index (S) of various types of land in Yongchuan District were calculated. The research results show that: in the ten years from 2005 to 2015, the area of ??cultivated land in Yongchuan District has been severely reduced, but it is still the most important type of land use in the area; since 2010, the area of ??forest land has grown rapidly. The implementation of the "lake" policy in Yongchuan District has shown initial results; the proportion of construction land has increased from 7.87% in 2005 to 14.53% in 2015. The fractal dimension has gradually decreased, the difference in construction land has weakened, and the stability factor has gradually increased. Large, the spatial structure tends to be stable; grassland, waters and unused land have not changed much during the study period. The size and change of fractal dimension value and stability index can better reflect the land use structure and evolution law.#$NLKeywordsFractal；Fractal Dimension；Stability Index；Land Use Change；Chongqing