Method and device for cash self-service equipment to realize change payment

The invention provides a method and device for achieving change payment through cash self-service equipment. The method comprises the following steps: receiving customer account cancellation businessthrough a cash all-in-one machine; inquiring signed information of the client; if other products are signed, the client being prompted to log out the other products first, and then account cancellation being carried out; if not, the cash all-in-one machine checking the identity of the client; after auditing is passed, the cash all-in-one machine displaying the two-dimensional code, the remaining amount in the client account being paid to the client through the two-dimensional code, and the client account cancellation service being completed; and account selling on the machine being faster andmore convenient, and the customer experience being improved. 本发明提供一种现金自助设备实现零钞支付的方法以及装置，方法包括：通过一现金一体机接受客户销户业务；查询客户已签约信息；若已签约其他产品，则提示客户先注销其他产品，在进行销户；否，则现金一体机对客户进行身份审核；审核通过后，现金一体机展示二维码，通过所述二维码将客户账户中剩余金额支付给客户，完成客户销户业务；在机具上销户更加快速便