The present invented data management computer system includes a client-side, a service end and a safety network; wherein client-side including an input unit, one output unit, a display unit, a data receiving unit, paper money saving device and paper money identifying device; service end including a data processing system and a data store unit. Said Client-side receives data concerned with unit deposit, after whole data inputted in client-side, client-side transmitting received receipt to service end through safety network, service end completing deal concerned with unit deposit according to instruction. Said method is convenient operation and free from bank normal operating period normal operating period limitation. |