The invention discloses an online invoicing method of a mobile terminal, the mobile terminal and a
system. The method includes steps of A, returning consumption information back to a mobile terminal after a user spends money on an express delivery cabinet; B, after the mobile terminal receives the consumption information, initiating an invoicing application to a background
server according to an invoicing command of the user; C, receiving invoicing information input by the user and uploading the invoicing information to the background
server after entering an invoicing interface; D, after thebackground
server receives the invoicing information, checking the invoicing information and issuing an electronic
invoice after the
invoice information is authenticated, and returning the electronicinvoice to the mobile terminal. According to the invention, a user fills
invoice information; after the background server checks the invoice information, the corresponding electronic invoice can be issued. Intermediate invoicing links are reduced and invoicing time is shortened. At the same time, financial staff of an enterprise can know finance and taxation condition in the
system in real time and performs centralized control, so that taxation risks are reduced substantially and operation efficiency is improved.