This thesis illustrates the principle of modernization of the exchange format of Slovenian land cadastre data, based on the guidelines of Land and Infrastructure Conceptual Model Standard (LandINFRA). I show a concept of a new format of land cadastre data in XML format, as is recommended by the Open Geospatial Consortium (OGC). In the theoretical part I described the problems of current formats for data exchange of Slovenian land cadastre data. I have stated the work methodology and presented used application software. In the empirical part of this thesis I firstly analyzed the current formats, on which I based my XML-format, which does not take into account the OGC guidelines (LandINFRA). I used this as a base for creation of a new exchange format of land cadastral data, based on the LandINFRA concepts. Then I compared all three formats and highlighted the most suitable one.