Method and device for detecting document

The invention provides a method for detecting a document. The method comprises the following steps of: acquiring paragraph characteristic information corresponding to the document; comparing the paragraph characteristic information of the document with paragraph characteristic information of at least one existing document; and judging whether the existing document similar to the document is provided according to a comparison result. The document can be detected by using the paragraph characteristic information, so the similarities of the documents can be compared accurately, and cheating on sectional processing of the document is avoided; moreover, the checking efficiency is higher and the pressing pressure of a server is lower; the method for detecting the document can be used for improving the online document copyright property detection, and detecting the document when the document is uploaded, so that the following document copyright property detection which causes unnecessary pressure on the server can be avoided; and the copyright property detection of the existing documents can be processed in mass, so the efficiency is higher.