The pile-anchor supporting structure is applied in a deep foundation pit under an existing high-steep slope, and the desigu of the supporting structure was introduced. The displacement of the supporting structure, the tension of anchor rope, and the settlement of the surrounding buildings were monitored when the supporting structure of the excavation was being constructed and excavated. Combining construction state, the monitoring data was analyzed. The analysis results show that the horizontal displacement of the supporting structure at the top of the foundation pit is affected by the existin...