Abstract: Browser-based Web3D applications have become one of the main carriers of digital displays and applications after the launch of the Digital China Plan. The current mainstream Web3D engines are encapsulated based on WebGL. However, there are problems in calling GPU computing and rendering capabilities, which fails to support new-generation graphics and computing technologies e.g. Ray Tracing and meet the needs of future Web3D applications. Therefore, this paper introduces and explores a new Web3D graphics API WebGPU. The results in the paper show that the performance of the original unoptimized WebGPU is far superior to WebGL. Moreover, it excels in the good rendering computer system, low resource consumption, multithreading support, strong underlying compatibility, and excellent performance. It has a high degree of fit with the engineering industry, which can be a good option for the future digital China-related engineering industry platform Web3D graphics API.