The invention discloses a rubber module which comprises a bracket, wherein a first tilted surface is arranged on the bracket; rubber clung to the first tilted surface is arranged on the first tilted surface; a fixing fastener with fixing and mounting effects is arranged on the bracket. The invention further discloses a rubber module fixing structure of a currency counting machine. The rubber module fixing structure comprises the rubber module and a currency conveying rack, wherein a second tilted surface matched with the first tilted surface is arranged on the currency conveying rack; a through hole which downwards penetrates through the currency conveying rack and is matched with the bracket is formed in the second tilted surface; a fastening part locked with the fixing fastener is arranged on the side wall of the through hole; currency conveying springs compressed on the rubber are also arranged on the currency conveying rack. According to the rubber module and the rubber module fixing structure, the first tilted surface is arranged on the bracket, the rubber clung to the first tilted surface is arranged on the first tilted surface, and the fixing fastener with fixing and mounting effects is arranged on the bracket, so that the rubber positioning is relatively accurate; the currency conveying springs compress the rubber by inherent elastic force of the currency conveying springs, the rubber replacement is effort-saving, and the rubber module fixing structure is simple and firm in structure and convenient and safe to assemble.