The tourist area is a display area mainly for tourism and cultural visit. With the continuous advancement of the digitization process of scenic spots in China, a number of information software products showing the digital achievements of science and technology have been emerging continuously, and the technology of virtual and real fusion has become the main technical means at present. AR technology is adopted to display the intangible cultural heritage of the scenic spot. This paper analyses the advantages and disadvantages of existing scenic spot construction and analyzes the advantages of AR technology in the construction of scenic spot. Taking penang valley li intangible cultural heritage scenic spot as an example, this paper expounds the display mode of AR technology in the scenic spot. The visit and tour of the scenic area based on AR technology brings real visual stereo effect, mobile convenience and interest to hands, and also provides beneficial reference for the wide application and rapid improvement of AR technology, as well as digital innovation and rapid popularization of the historical background of intangible cultural heritage.