Abstract: This paper collects relevant information on the newly added Yuping potential seismic source in western Huaihua, and analyzed the seismic hazard of the study area based on 1′×1′ grid points. We mainly discussed the changes in PGA before and after the new potential seismic source in the Hunan-Guizhou border region, and drawing isolines and zoning based on the PGA of site Ⅱ. The results of seismic hazard analysis show that the PGA has been greatly improved inside and 20 km away around the new potential seismic source. When the focal depth is 10 km, the PGA of exceeding probability of 10 in 50 years within the Yuping potential source range increases from 35～40 cm/s² to 80～95 cm/s², increase of about 2.3 to 2.4 times. In local areas such as Xinhuang and Zhijiang within the potential source, the basic intensity can reach Ⅶ degrees. And outside the potential source, PGA gradually increases from 35～80 cm/s². When the focal depth is 15 km, the basic intensity in regions such as Xinhuang and Zhijiang remains at Ⅵ degrees. The article also conducted a preliminary analysis of the seismic capacity of different types of houses in Xinhuang and Zhijiang county in western Huaihua. Additional attention should be paid to the follow-up work of earthquake prevention and disaster reduction.