This paper presents a case of Jiangsu Province. The author picks up more than 30,000 data of resident areas from topographical maps. More than 30,000 population data are picked up from the transformed data of inhabitation. The author presents 3 maps on the population density of Jiangsu Province drawn by the raster dasymetric diagram method, raster dasymetric choropleth method and isopleth method respectively, and the map on the population distribution of Jiangsu Province drawn by the fixed position dot-dissemination method on the base of population data. The common characteristic of the maps is that they are drawn by using much more population data based on km rasters.