Error auxiliary recovery system and method for self-service terminal device

The invention discloses an error auxiliary recovery system and method for a self-service terminal device. The system comprises a server and the self-service terminal device; the server establishes a communication connection with the self-service terminal device; and when the situation that an error capable of recovering operation of the self-service terminal device by pressing down a corresponding function key on the self-service terminal device occurs in the self-service terminal device is identified by the server, the server sends an instruction of controlling the key of the self-service terminal device to the self-service terminal device to simulate the operation of pressing down the corresponding function key on the self-service terminal device, thereby recovering the operation of the self-service terminal device. When the situation that the error capable of recovering the operation of the self-service terminal device by pressing down the corresponding function key on the self-service terminal device occu