通过对居庸关南瓮城城墙现状的调研,运用科学数据获取、整合和分析的方法,对现存南瓮城城墙客观评析,将城墙的构造现状和残损情况归类整理,最终形成完整的城墙病害分布图,从而为城墙修缮工作提供切合实际并完整的资料,试图说明建筑遗产测绘方法的重要性。 Through the investigation of the status quo of the city walls of Juyongguan Nanzhao City and the use of scientific data acquisition, integration and analysis methods, an objective assessment of the existing Nanxun City Walls is made. The current status of the city walls and the damage conditions are categorized, and a complete map of the disease distribution of the city walls is formed. This will provide practical and complete information for the repair work of the city walls and attempts to illustrate the importance of the method of surveying the architectural heritage.