Abstract: After the impoundment of the Baihetan Hydropower Station, the Xiangbiling Resettlement Site has formed a high-fill artificial peninsula surrounded by water on three sides, and its deformation problem has attracted much attention.In this paper, all-weather, high-precision remote deformation monitoring and analysis for the artificial peninsula protection embankment was carried out using GNSS technology.Meanwhile, the wetting strain model and rheological model of the soil-rock mixtures were constructed using engineering analogy method, and the long-term settlement trend of the artificial peninsula was predicted by layered summation method.The results showed that: the displacement of the monitoring points of the protective embankment fluctuated regularly with the rise and fall of water level, and its cumulative value and change rate met the requirements of the specifications, indicating that the protective embankment had good stability.The predicted results were basically consistent with the monitoring data, verifying the accuracy of the model and the effectiveness of the prediction method.Wetting and buoyancy effects were the main factors controlling settlement, and the contribution of wet settlement to total settlement far exceeded that of rheological settlement.The fluctuation of the displacement of the protective embankment subjected to water level change was mainly caused by the buoyancy effect of water.The maximum long-term cumulative settlement prediction values of the protective embankments on sides of the Jinsha River and Xiaojiang River were approximately 18 mm and 14 mm, respectively.