In this study, we propose a new physical structure integrity assessment method, using Chagan Lake, China, as the study area. The method is based on the improved "river (lake) health assessment index, standard and method of V1.0" of the Ministry of Water Resources. A 500 m×1000 m grid was selected on the lakeshore zone as the basic evaluation unit. An evaluation system of lakeshore physical structural integrity was established with 315 evaluation units by romte sensing and geogragy information system technology. The system was composed of target layer, a criterion layer, and an indicator layer. The criterion layer was composed of lakeshore condition, shoreline development rate, and lake atrophy rate. The index layer was composed of slope, vegetation coverage rate, and water level change rate, in addition to 8 other indicators. For 23 sampling points in Chagan Lake and 13 monitoring points in Xinmiao Lake, the RS evaluation were 0.60-0.74 and 0.35-0.52, respectively, while the field evaluation results were 0.64-0.77 and 0.35-0.55, respectively. The evaluation results were in good agreement with the two evaluation methods, and consistently indicated that the physical structural integrity of the lakeshore area of Chagan Lake was in a healthy state, while that of Xinmiao Lake was in a sub-healthy state.