The present invention discloses an Internet-based physical object 3D interactive exhibition system, comprising a content layer, an analysis layer, an exhibition layer and an interaction layer. Firstly, a user uploads a corresponding supported 3D file into a server, conducts various corresponding editions for product exhibition content by using a content editing system in the content layer, and obtains product exhibition data and stores the same; then uploads the product exhibition data into an analysis layer, parses the content, transforms text description into a data file that can be identified by the exhibition layer, and afterwards presents the content by using the Stage3D and WebGL technologies on an underlying layer, and generates an online link; the user uses the link to accordingly exhibit the product content on a PC or a mobile terminal. The present invention adopts the Stage3D and WebGL technologies as the 3D underlying technology to complete cross-platform product exhibition, and applies the flash technology and the HTML5 technology as exhibition-side content for presentation at the foreground. The advantages of the flash technology lie in compatibility with 99% of the current browsers, fast speed, and stable operation.