In order to enhance internal control and elevate the service quality, the e-processing mechanisms for filing and retrieval of payment vouchers and remittance notices for payees were established. They apply computer systems and automatic operations to set up a mechanism that transforms hard copies of the payment vouchers for filling and retrieval, and the same copies of the application of the remittance notices for payees into multi-media file formats, so the whole procedure including reviewing and approval can be completed online. Also, the banking transaction information can be transmitted to the payees through the mechanism. After the implementation of the e-processing mechanism, it has elevated the efficiency of the management and the application of the documentation filing, enhanced the internal control, and improved service quality.