Virtual reality technology is applied into products, it can provide more realistic and more interactive visualization environment. Virtual exhibition is becoming a new exhibition mode. Firstly, the VRML-based virtual exhibition system structure is introduced in this paper. Secondly, the system's main function modules and functions are described in detail. Thirdly, the core system and the working principle of VRML are introduced. Finally introduces the realization of the system is introduced and two key technologies of VRML-script interaction and collision detection are analyzed, and then summarized. This system has better practicability and provides certain reference value to further improve the design of a virtual exhibition.