The invention discloses a quota delivery method and system for digital currency, and relates to the technical field of computers. According to one specific embodiment of the invention, the central management system comprises a request receiving module, a verification module and a voucher issuing module, wherein the request receiving module is used for receiving a currency generation request sent by a digital currency putting system, and the currency generation request indicates a currency generation amount; the verification module is used for verifying the currency generation request accordingto a verification rule corresponding to the digital currency putting system so as to determine whether the currency generation request meets the verification rule or not; and the voucher issuing module is used for generating a limit voucher corresponding to the currency generation request when the currency generation request passes the verification, and sending the limit voucher to the digital currency putting system. According to the embodiment, a safe and convenient application environment is provided for the digital currency, and the putting safety of the digital currency is improved.