[Purpose/significance] The National Library's Legislative Decision-making Touch Screen System combines the digital resources of the collection with the new media technology and becomes one of the important methods for the National Library to the leading organs of the central state. [Method/process] Take the construction of “National Library Legislative Decision-making Touch Screen System” as an example, combed and summarized the experience and design principles in the process of system construction, and the system from service situation, research status, construction situation, existing problems and the upgrade plan was systematically described and analyzed.