In the implementation of credit bank, the transformation of learning accomplishments cannot be automated, and the workload of credit achievement management is large. Credits cannot interact freely across different credit banking systems. In order to solve the aforementioned problems, this study proposes the use of alliance chain technology to overcome the technical challenges encountered in the establishment of credit bank. In line with the basic framework of the alliance chain, a credit bank model based on blockchain technology is designed. At the moment, only the model design has been completed; the implementation of the model will take place in the later stage.