Abstract:Under the environment of Microstation VBA, the secondary development of Microstation V8 is carried out, and a set of updating and quality checking systems of multi-scale topographic maps based on Microstation V8 platform have been realized. The functions of this system in dealing with points, lines, surfaces, annotation, property, plot effects and quality inspection control and other aspects are introduced. Through the secondary development, the updating and maintenance of topographic maps have been realized. It is favourable for quality controlling and meet the demand of storage of topographic maps.