Abstract: A cash replenishment method for financial self-service equipment, including: acquiring the cash replenishment amount input by a user; acquiring the denominations of available banknotes in the self-service equipment; acquiring the remaining number of notes corresponding to each denomination; determining the total amount in the self-service equipment; performing cash replenishment of the cash replenishment amount using a precise cash replenishment method; determining a new cash replenishment amount capable of exactly dividing the only denomination remaining in the self-service equipment or the greatest common divisor of several denominations remaining in the self-service equipment within the range from the cash replenishment amount with a preset error value subtracted to the cash replenishment amount; performing cash replenishment of the cash replenishment amount using the precise cash replenishment method; and prompting that cash replenishment has failed.