Method and device for judging document ownership

The embodiment of the invention relates to a method and a device for judging a document attribution party. The method comprises the following steps of: obtaining a plurality of version documents of the same target document and editing information of each version document; the multiple version documents are divided, at least one version document group is obtained, and different version document groups belong to different time slices; according to editing information of version documents in each version document group, determining a document editing identifier of the target document corresponding to each time slice; wherein the document editing identifier is used for indicating at least one editor and editing amount information of the target document by the at least one editor in the time slice; and according to the document editing identifier, corresponding to each time slice, of the target document, determining an affiliation party of each version document. Therefore, the affiliation party of the version docu