Online maps is tool to show the geographic objects in space very effectively. Compared with paper maps, objects not only displays merely static symbols on the map but also the many layers of information interaction between user and database system. During the enrollment, online map serves provide the candidate knows the information about venues, examination rooms, list of candidate ID, transportation options and more information. This paper presents a method of online mapping service of the university entrance exam on the basis of access to geographic information systems (GIS) and online mapping service Google maps, which recommends online mapping applications in management space at Thai Nguyen University.