Research on 3D Digital Twin Construction: Visualization-Driven Transformation of Chinese Manufacturing Towards Intelligentization

China’s economy has shifted from rapid growth to high-quality development, and the manufacturing sector is now facing an inevitable transformation from "quantity expansion" to "quality improvement." In this important historical process, the present study focuses on the application value of 3D digital twin technology in the intelligent transformation of Chinese manufacturing. By in-depth analysis of the synergistic advantages of digital twin and visualization technologies, the study explores how these two cutting-edge techniques can be harnessed to enhance the overall intelligence of China’s manufacturing industry. Based on a research approach that integrates theory and practice, this paper innovatively explores the framework for constructing a 3D digital twin system, and through simulation of typical scenarios, summarizes the current state of technology development and future trends. The result is an actionable industrial solution that provides systematic theoretical support and practical guidance for the intelligent transformation of Chinese manufacturing.