Abstract: Cartographic text becomes the most important facility for transmission of map-information and makes map to be more readable and interpretable.As is known to all,it's the most time-consuming task to produce a map.The labeling mode and methodology of area features are mainly studied.Then these algorithms are implemented in text placement module of an auto-map system in VC++ environment.A case study shows the sound cartographic results of the labeling is acceptable and computational efficiency.