Industrial Internet is a synthesis incorporating various supporting technologies and application scenarios, and it is also extremely complex in actual application. Therefore, it is never easy to truly understand and apply industrial Internet. This book systematically elaborates the development background, theoretical knowledge, top-level planning and transformation implementation of industrial Internet, so as to formulate a complete theoretical system and implementation methodology for industrial Internet. At the same time, the book includes practical cases in different fields of industrial Internet, clearly presenting the construction path of industrial Internet and its implementation effect by using an empirical approach. In terms of practice, the book also introduces some IT solutions in detail. Industrial Internet: Digital Transformation and Upgrading of the Whole Industry Chain is a book that every entrepreneur and investor should have to study industrial Internet.