The toponyms on the maps are integrated data. They can clearly illustrate the backgrounds of areas, and support the phenomena that symbols can't describe properly. Therefore the toponym database is also important in the digital map and has same functions. The appropriate planning of toponym database is the key to manage the digital map. Thesis aim at the large and complicated toponyms in the maps, and make a symetic anti proper specification. According to above feature and map compilation, we can combine with asymbol data to the module of design the system of toponym standard specification and toponym database.