China's ancient architecture has a long history of thousands of years, with its unique art and charm, very popular with the public. With the rapid development of the Internet, the concept of digitization is becoming more and more known. The use of digiti- zation to create an ancient architectural navigation system can play a better role in promoting the tourism landscape. For the digital guide of the ancient architecture of "Nanhua Temple", this paper firstly selects eight main buildings in Nanhua Temple to analyze and study, and completes the three-dimensional modeling, roaming and virtual navigation design, which gives the visitors good visu- al experience and cultural influence.