A cash processing system capable of preventing erroneous operations by an operator during cash transfer processing and enabling the cash transfer to be executed efficiently. This system comprises a first cash processing machine for performing an outgoing cash transfer, a second cash processing machine for performing an incoming cash transfer, and a portable terminal. The portable terminal is equipped with a display unit, an operation unit for receiving input of cash transfer information, including cash information, and a communication processing unit. Upon receiving outgoing cash transfer information included in the cash transfer information from the portable terminal, the first cash processing machine pays out cash based on the outgoing cash transfer information. Upon receiving incoming cash transfer information included in the cash transfer information from the portable terminal, the second cash processing machine receives cash based on the incoming cash transfer information.