The embodiment of the invention provides an identification analysis method and device, and the method comprises the steps: obtaining the identification information included in a query request in a user tag, carrying out the format conversion processing of the identification information, and obtaining digital information; and if the digital information is not stored in the first preset node, inquiring product information related to the digital information from a second preset node, and sending the inquired product information to the user. Therefore, by applying the analysis method provided by the embodiment of the invention, the query efficiency can be improved.