According to exemplary embodiments, a method and system for generating binary Extensible Markup Language (XML) data is provided. The generating includes acquiring an XML data source and generating a first child distance (FCD) token and a next sibling distance (NSD) token of an element node in the XML data source. The generating also includes generating binary XML data of the XML data source by using the FCD token and the NSD token, where the binary XML data includes the FCD token and the NSD token.