Abstract: The performance of low-grade ceramic raw materials fluctuates widely, significantly affecting the continuous production of ceramic slurries and powders. To address this issue, a centralized preparation process for low-grade ceramic raw materials is proposed, which mainly includes raw material pre-crushing, layering and homogenizing, continuous ball milling with five chambers, slurry pouring and spray drying. The performance indicators of sand and stone materials, ceramic slurries, and powders under the new preparation process are quantitatively analyzed, revealing the role of centralized powder production technology in the preparation and application of low-grade materials. A stable and standardized raw material system is formed, and powders with full particle morphology and uniform particle size distribution are eventually prepared. In terms of energy saving and cost reduction, the average daily cost can be reduced by 30.61%, labor costs by 35%, and equipment costs by 58%, resulting in comprehensive cost savings of nearly 10 million yuan per year. This process is of great significance for the development and application of centralized powder production technology in the ceramic industry, as well as for promoting the transformation and upgrading of the ceramic industry.