Invoices processing method of network tax control system

The invention provides a invoice process method for network tax control system; The method is as follows: The invention makes for a tax control server in a network tax control system and electronic invoice assortment and recycle process between all network tax controllers; the comprises: A tax control server determines the minimum invoice reel quantity in each network tax controller according to history sales list data information of all network tax controllers stored in the system, as well as the shortest working time that should be maintained after off-line issue happens; the tax control server, in the premises of guaranteeing the remaining invoice reel quantity of all network tax controller not lower than the minimum invoice reel quantity, performs invoice reel recycle for the network tax controller, and assort the recycled invoice reels to a network tax controller request invoice reels; if the quantity of un-assorted invoice reels in the tax control server meets the requested invoice reel quantity, assortment on the invoice reels will be performed directly. The invention execution examples can fulfill invoice assortment and recycle process in network environments, in order to meet the application demands for assortment, receiving and transition of notes for network tax control system in prior MIS systems.