Data cleaning method and device based on block chain, equipment and storage medium

The invention provides a data cleaning method and device based on a block chain, equipment and a storage medium, and relates to the field of block chains. The method comprises the following steps: after multiple pieces of inactive text data in a to-be-detected block chain system are obtained, firstly, determining target inactive text data from the multiple pieces of inactive text data, and determining a to-be-cleaned data set having an association relationship with the inactive text data from the block chain system; then, determining a risk assessment score of the to-be-cleaned data set by adopting a data high-dimensional portrait extraction model and a risk scoring model, and finally, cleaning the to-be-cleaned data set when it is determined that the risk assessment score reaches a preset risk score. According to the method, the existing data in the block chain system can be effectively subjected to risk detection and cleaning while the integrity and the security of the stored data are ensured, so that the s