Abstract: The present invention discloses a method for optimization data governance, including AI data collection and processing, AI optimization metadata and intelligent data quality assessment management. AI data collection and processing includes data access, data conversion, data loading and policy template saving as well as data quality assessment management. AI optimization metadata includes technical metadata and business metadata. Intelligent data quality assessment management adopts AI definition transformation rules to extract data quality assessment dimensions. By introducing AI technology into data governance, this application proposal realizes the improvement in data quality and the improvement in mining the association and blood relationship among data, provides a unified policy template library, and then enriches the policy templates of data governance in various industries through AI learning.