The invention provides a cashbox, a storage device, a storage
system, and a working method. The cashbox comprises a box body and a box cover. The cashbox also comprises a paper money inlet which is disposed on the box cover and is provided with a sliding baffle plate; a paper money
processing apparatus which is disposed below the sliding baffle plate, is communicated with the box body, and is used for recognizing the authenticity of paper money and the serial number of each piece of true money, sorting the amount of the true money, delivering the true money into the box body, and enabling paper money which cannot be recognized to be returned to the paper money inlet; an RFID
chip which is connected with an external RFID reading-writing device through an RFID antenna, and is used for recording the serial number and amount of the true money, and transmitting the serial number and amount of the true money to the external RFID reading-writing device through the RFID antenna; and a main control
chip which is connected with the sliding baffle plate, the paper money
processing apparatus and the RFID
chip, and is used for controlling the sliding baffle plate, the paper money
processing apparatus and the RFID chip to operate. According to the technical scheme of the invention, the cashbox achieves a purpose of enabling the daily fund of small and medium merchants with irregular
business hours to be quickly collected to a
bank in real time.