With the acceleration of digital transformation,public data,as an important information resource,plays an increasingly important role in promoting urban development and improving people's livelihood.This paper takes the promotion path of public data standardization in Shanghai as a study case and finds that the path is to promote the integration of government,enterprise and university resources through the Shanghai Public Data Standardization Technical Committee,build and improve the framework of public data standardization system,and through the pilot-first,closed-loop assessment and evaluation mechanism,constantly promote the comprehensive development of public data standardization work,providing clearer specifications and guidance for the collection,aggregation,governance,application,operation and security of public data,and provides more powerful support and guarantee for promoting the digital transformation and development of Shanghai.It is hope that the study will provide a reference for the standardization work of public data in other regions.