Abstract: The former site of Zhengzhou No. 2 Grinding Wheel Factory is an important part of the old industrial base in the western part of Zhengzhou. It has witnessed the rise and fall of the old industrial base. In the process of urban renewal, through the study of the historical context of Ersha, the physical environment elements in the site are retained, and the public space quality of the old industrial zone is activated by combining the memory of industrial culture, the positive surrounding community relationship is established, and Ersha is built into a new and dynamic landmark of the old urban area of Zhengzhou. This paper takes the stock system control as the research method, and starts from the three aspects of materiality, timeliness and operability, and presents the open integration and multiple rebirth between new and old buildings through the planning strategy of space complementarity, vitality shaping and multiple integration. In the planning and design, it is recommended to respect the original spatial pattern of the old industrial zone, create a distinctive public space layout of the site, reproduce the modern Bauhaus architectural style, endow the Ersha industrial heritage with new functions and significance through renovation, and also provide some reference for the study of the refining and rebirth of the industrial heritage at the spatial level.