Map knowledge service construction method, device and system

The invention discloses a map knowledge service construction method, device and system. The construction device comprises a data acquisition unit, a graph generation unit and a service establishment unit. The construction system comprises a construction module and a data storage module. According to the method, the device and the system, the first information data set related to the preset information keyword is searched in the preset websites, the knowledge graph is generated according to the first information data set, and the map knowledge service is further established according to the knowledge graph, so that the mining sufficiency of the geographic information data is improved; furthermore, according to the map knowledge service construction method, device and system provided by the invention, when a plurality of first webpages are obtained by searching the information keywords, invalid contents are removed to screen and extract webpage main body contents in the first webpages, so that the efficiency of