In 1938, the discovery of the first dinosaur fossil (Lufenglong) in Yunnan marked the beginning of the Jurassic dinosaur explosion in Yunnan. After generations of geologists’ continuous research and excavation, the discovery of dinosaur fossils extended from the Lufeng area to the outside, followed by discoveries in Yimen, Yuanmou, Jinning, Wuding and Shuangbai area in Yunnan, However, the discovery of these dinosaur fossils is concentrated in the central and eastern parts of the Chuxiong Basin, and there have been no reports on the western region of the Chuxiong Basin.Results: Through a comprehensive and systematic investigation of paleontological fossils, the authors discovered for the first time the origin of dinosaur bone fossils in the Fengjiahe Formation of the Lower Jurassic in the Xiangyun area of western Yunnan. A preliminary fossil profile investigation and repair were conducted on the new origin, and a total of 5 enriched layers of dinosaur fossils were found. Some of the preserved fossils are relatively complete, mainly including the intestines, vertebrae, ischium, and humerus. Conclusions:This discovery and research have broadened the distribution range of dinosaur fossils in Yunnan, filling the gap in the absence of dinosaur fossils in the western part of the Chuxiong Basin, greatly enriching the Early Jurassic dinosaur fossil pool in Yunnan, and providing important paleontological fossil research materials for the evolution of the ancient environment and stratigraphic correlation in the western part of the Chuxiong Basin.