According to the Taiwan Industrial and Commercial Times, Taiwan Enterprise Bank (Taiwan Small and Medium Enterprise Bank) has actively strengthened the application of new technologies. At present, it has promoted applications at four levels, including biometric system applications, blockchain applications, big data applications, and operation process introduction into RPA ( Robotic process automation). In terms of blockchain applications, it will effectively control bank correspondence cases and streamline branch operations. The “Information Department” will build a correspondence case management system by using the API connection provided by Caijin to optimize the blockchain. Correspondence processing operations.