本文首先介绍了国家西部1∶50000地形图空白区测图工程的背景,根据测区地物特征提出了补充西部测图要素的四种途径:要素选取指标调整;地形图原有要素类属性内容扩充;西部特色要素突出表示;地形图新生要素选取。进而,对补充的要素进行几何形状规定和属性表设计。最后针对补充要素的可视化进行了符号设计。 This paper first introduces the background of 1: 50000 topographic map blank area in the western part of China, and proposes four ways to supplement the Western map elements according to the features of the survey area: the adjustment of the element selection index; Expansion; prominent western features; selection of topographic elements. In addition, the geometry of the supplemental elements is specified and the property sheet is designed. Finally, the design of the symbol for the visualization of supplementary elements.