The embodiment of the invention discloses an information query method and device. The method comprises the steps: receiving a document to be processed uploaded by a user, wherein the document to be processed uploaded by the user is usually in a format that cannot be directly edited, for example, in PDF format, and therefore, word recognition needs to be carried out on the document to be processed so as to obtain the editable format of the document to be processed, for example, txt format; then, creating an index according to the entire content of the document to be processed in an editable format; after obtaining a query sentence input by the user, searching an index table according to the query statement to obtain a query result, and returning the query result. By using the method, the user can input the query statement on a client, a server directly queries documents stored in a standard database, obtains the document containing the query statement, and the position of the query statement in the document, and returns found information to the page of the client for the user to view, and standard text retrieval and query functions are achieved.