The invention discloses a cash refilling device. The cash refilling device comprises a lower frame and an upper cover covering the lower frame and is characterized in that a cash inlet gate is installed at the upper part of the lower frame, a guide wheel is installed on the same plane as the cash inlet gate, a soft belt or a chain sleeves the periphery of the guide wheel, the two ends of the soft belt or the chain are connected to the cash inlet gate, and an unlocking mechanism used for controlling to open and close the cash inlet gate is installed in the lower frame. Compared with the prior art, the cash refiling device has the advantages that the cash inlet gate is opened through the coordination action of the unlocking mechanism, so that cashes are not refilled one by one, but can be refilled rapidly. Meanwhile, the mechanisms work in a coordinated manner, the reaction is quick, and the sensitivity is high.