The development process of manufacturing industry is moving along the stage of digitalization to network and intelligence. As the main force of building the western economic development plateau，Chengdu has been striving to build “the core growth pole of western economy with global comparative advantage，national speed advantage and western high-end advantage” in recent years，further promoting the deep integration of informatization and industrialization，promoting the transformation of manufacturing industry from scale growth to quality improvement，relying on industrial Internet platform，etc. This study focuses on the analysis of the industrial Internet platform in Chengdu，analyzing the distribution of the industrial Internet industry chain in Chengdu，quantitatively evaluating the current situation of digital transformation development in Chengdu based on the diagnostic data of the integration assessment of Chengdu enterprises，and putting forward multi-level development suggestions in the areas of strategic positioning，infrastructure，knowledge reuse and talent training.