Chinese excellent traditional culture is the crystallization of the wisdom of the Chinese nation over the past 5,000 years.It's the spiritual pillar of the growing strength of the Chinese nation, and the inexhaustible source of power for the descendants of Chinese nation to have strong cultural confidence. In the context of the Metaverse, which is considered to be the future form of Internet development, the study aims to explore innovative ways to disseminate Chinese traditional culture, striving to break through the limitations of time and space, finally realize the digital preservation and transmission of traditional culture with the Internet as the carrier, so that Chinese traditional culture can better burst into new vitality in the stage of world culture. Using 3D virtual world, the study takes Tang Dynasty history and culture as the entry point and builds an interactive roaming scene of Tang Dynasty culture based on There 3D virtual world, which presents a corner of Tang Dynasty culture in an immersive way. The research is divided into three stages: preliminary research and planning, middle stage of gradually building the scene to realize the function and later stage of repeated experience to adjust the details.The focus is on building the "DaTang Atmosphere" roaming scene with Chang'an City as the background, accumulating certain experience for the application of virtual worlds in the field of cultural communication.