The invention discloses a method for releasing geospatial data incremental information, which comprises the following steps: determining the semantic definition, classification, measurement and storage of the incremental information by organizing and modeling geographic incremental information; establishing an XML-based geographic incremental information storage medium which facilitates the release of the geographic incremental information and the update of a client; and storing the acquired incremental information in an XML format and releasing the XML incremental information. The method provides a database operation-oriented data description of the incremental information according to the change type and operation type of factors as well as the classic definition and classification of the incremental information, provides incremental information data expression in XML on the basis of geographic information data file expression and SGML expression, provides XML-based geographic incremental information storage, and has the advantages of self-description, flexibility, independence, expandability, high structural property and good cross-platform property.