The invention provides a method, device and
system for automatically verifying authenticity and repetition of an
invoice. The method comprises: storing values of a plurality of
invoice information items of each
invoice reported to a tax bureau for invoice reimbursement; identifying an invoice uploaded from the outside to obtain the invoice code and the value of the invoice number; when the invoiceneeds to be verified, sending the two values to a tax bureau to send an invoice
verification request, and receiving a corresponding
verification passing notification sent by the tax bureau when the tax bureau passes the
verification, otherwise, executing verification failure
processing according to a corresponding verification non-passing notification sent by the tax bureau to enable the invoicenot to be reported to the tax bureau for invoice reimbursement; when the invoice needs to be subjected to repetition checking, inquiring whether values of a plurality of invoice information items of the invoice are stored or not according to the two values, the invoice code and the invoice number of the invoice information items being the same as the two values respectively, and if so, executing repetition checking failure
processing so that the invoice information items cannot be reported to a tax bureau to be used for invoice reimbursement. According to the scheme, the problem invoice can beprevented from being reported to a tax bureau by verifying the authenticity and repetition of the invoice is solved.