Abstract:As the industrial all-factor link hub and resource allocation core, the industrial Internet platform is a key node to promote the optimization and upgrading of the whole industry chain. In order to fully tap the data value of the industrial Internet platform and guide the healthy development of the industrial Internet industry, this paper has developed the 2021 Industrial Internet Platform Development Index, through the comprehensive development index and the measurement of four sub-indexes such as resource aggregation index, knowledge precipitation index, application vitality index, enterprise empowerment index, etc., to analyze the development trend of China"s industrial Internet platform since 2018, sort out the key capabilities of the core industrial model of the key industrial Internet platform, the industrial APP, and fully tap the value of the platform data. Provide reference for governments, service providers and user enterprises.