The sequence and corresponding content of the twenty-eight constellations recorded by the ancient Yi people in Sichuan, Guizhou, and Yunnan regions exhibit differences, but all begin with the "Ang" constellation. Based on historical records such as "the Treatise on Celestial Offices" in Shiji, it is inferred that this is related to the activities of the ancient Yi people in the western region of China. By comparing them with calendrical systems and astronomical observations from the Zhou dynasty period, we can suggest that the unique method employed by the ancient Yi people to express the beginning of the year might have been influenced by the winter solstice observations of Zhou dynasty ancestors. The Yi ethnic calendar, represented by the twenty-eight constellations, plays a significant role in astrological divination, which is similar to astrological texts since the Qin and Han dynasties. When combined with recent discoveries such as the twenty-eight constellations chart unearthed from an Eastern Han dynasty tomb in Jingbian County, Shaanxi Province, the sequence and content of the twenty-eight constellations among the Yi people in Guizhou are in line with Central Plains culture, while those in Sichuan and Yunnan retain some indigenous elements. This study provides significant support for cultural exchanges between the Yi people and the Central Plains, as well as the integration of various ethnic groups into the unified Chinese culture.