Confidential method of intelligent settlement system and related device

The invention discloses a secrecy method of an intelligent settlement system and a related device. The method comprises the following steps: acquiring block chain operation account transaction data every other account grouping period to generate an account transaction graph; dividing the accounts into k groups, and correspondingly distributing the accounts in the k groups to k block chain fragments; training the block chain fragments by using local data to obtain a local model; and after the node training model is completed, the local model is broadcasted and sent to other nodes in the fragment. The invention provides a secrecy method of an intelligent settlement system, and solves the problems that the conventional block chain transaction is low in storage expansibility; and a federated learning node and a block chain node are isolated from each other, and the privacy of an account cannot be protected by mutual communication between the nodes. 本发明公开了一种智能结算系统的保密方法及相关装置，该方法包括：每隔一个账户分组周期获取区块链运行账户交易数据生成账户交易图；将账户