In order to meet the power supply requirements of new users in Yunyan Town, Yichuan County, the Yichuan County Power Supply Branch of State Grid Shaanxi Electric Power Co., Ltd. Guided the geological hazard investigation and geological hazard assessment survey of the construction plot of the Yichuan Guxian 110 kV power transmission and transformation project. The survey results show that the complexity of the geological environmental conditions around the construction area is moderate, no geological disasters have occurred, and it is predicted that no geological disasters will be triggered or encountered during the construction process. The slope on the west side of the construction site can be regarded as a potential landslide point, with low risk and low hazard degree. After comprehensive assessment, this area is divided into a low-risk area (Ⅲ).The geological hazard risk assessment result of this plot has high reliability and is systematic, providing an important basis for the subsequent evaluation of the suitability of the construction site.