Invoice processing method, device and system

The invention provides an invoice processing method, device and system, relates to the technical field of cloud services, and is used for improving the flexibility of invoice processing. The method comprises the steps that tax control equipment and a cloud server are connected through a network, and terminal equipment responds to an invoicing instruction triggered by a target account through a target interaction interface and sends an invoicing request to the cloud server through a target interface; the cloud server forwards the invoicing request to tax control equipment through a network; and the tax control equipment issues a target invoice according to the invoicing request, determines an invoicing result of the target invoice, and forwards the invoicing result to the terminal equipment through the cloud server. According to the method, the cloud server interacts with the tax control equipment through the network, so that the account does not need to own own computer and related equipment in the invoice pr