1. Key points of design: VR virtual roaming technology is used, the architectural style of Suzhou classical gardens is used as the keynote and model, and the theme exhibition hall of Chinese excellent traditional culture is used, so that users can have all-round real and three-dimensional exhibition visiting experience and feel the charm of VR virtual roaming works in the operation and use of the software. While appreciating the architectural characteristics of Suzhou's classical gardens, we can understand the concept of harmonious coexistence between man and nature; while learning Chinese traditional excellent calligraphy, painting and clothing works, we can feel the characteristics of different dynasties and the inheritance between dynasties. 2. Design difficulties: Relevant and useful material resources are very scarce, and it is difficult to find suitable materials. The initial modeling was not fine enough, and the image of the produced widgets was not optimistic. After more than a month of careful study, it was solved, which is also the biggest difficulty in the process of project construction.