The invention provides a method and a device for acquiring electronic invoices. The method comprises the steps that a two-dimensional code on an invoice extraction certificate is scanned, billing information is obtained, the two-dimensional code is generated after a second terminal receives passing transaction information generated when a vehicle travels on a toll road from a first terminal, andthe billing information is at least part of the passing transaction information; the invoicing information is sent to a server, with the invoicing information being used by the server to obtain the passing transaction information, and the passing transaction information being used by the server to generate an electronic invoice; and obtaining the electronic invoice from the server. The electronicinvoice obtaining efficiency can be improved.