An online value-added tax invoice management system

The invention discloses an online management system for value-added tax invoices. The online management system comprises a data classification and approval subsystem, a data transmission subsystem anda service function subsystem, the data classification and approval subsystem is used for carrying out data matching integration on invoice business related category information according to tax classification requirements; the business function subsystem is used for calling the data transmission subsystem to collect data related to various invoice businesses according to an external control instruction; and analyzing and integrating the acquired invoice service related data, and sending the data to an invoice digital full-life-cycle management cloud platform system to execute corresponding invoice service processing, or further processing an integration result in a service function subsystem. According to the invention, interconnection and intercommunication between enterprise operation data and a tax bureau invo