Abstract: Based on detailed data collection and field survey of bedding shale slope in Chengde-Zhangjiakou expressway, the slip mode and slope stability are analyzed and determined by using the stereographic method. The results show that this slope is unstable, and the slip mode is sliding-tension type. The limit length of the slope instability is calculated. According to the calculated results and the local geological conditions, the micro-pile is recommended for the slope reinforcement. The stability results of the slope with micro-pile reinforcement meet the design requirements. The analytical method and design measures can be references for stability analysis of this type of slope and in the future.