A sheet handling system is provided in which sheet handling apparatuses and a central apparatus are network connected and which can set a discrimination level of each of the sheet handling apparatuses from the central apparatus.The sheet handling apparatus has selection means which can select any one of a genuine note, a damaged note, a rejectable note, automatic setting and on-line setting, and setting means which requests the central apparatus to transmit a discrimination level when the on-line setting is selected, receives the transmitted discrimination level and sets a discrimination level. The central apparatus has selection means which can select any one of the genuine note, the damaged note, the rejectable note, and the on-line setting, and setting means to set automatically a discrimination level based on detection data received from the sheet handling apparatus in a case that the on-line setting is selected, and transmits the relevant discrimination level when the transmission request for the discrimination level is made.