1, different application objects: the advance payment guarantee is applicable to the contractor's provision to the owner; The prepayment refund guarantee applies to the money provided by the supplier to the buyer.
2. The guarantee content is different: the guarantee content of advance payment guarantee is that the advance payment paid by the owner to the contractor according to the contract is really used for the implementation of the project; The guarantee content of advance payment refund guarantee is that if the applicant fails to fulfill his contractual obligations with the beneficiary and fails to refund or repay the money prepaid and paid by the beneficiary, the bank will refund the money to the beneficiary.