Abstract: Particulate matter is the main air pollutant in foundry industry and one of the key air pollutants controlled by the state. Taking the foundry industry as the research object, the characteristics of generation and emission of particles in various production processes of foundry enterprises were analyzed. Taking the foundry industry in M City, as an example, the emission status of particulate matter and related industrial policies were analyzed and summarized, and the potential of cleaner production emission reduction in the foundry industry of M City was summarized.Combined with the “bottom-up” pollution reduction model and Second National Survey of Pollution Sources Industrial Pollution Coefficient Manual, a model of particulate matter pollution reduction in foundry industry was constructed and, on this basis, the potential of particulate matter pollution reduction in A foundry company during the “14th Five-Year Plan” period was predicted and analyzed.The results showed that compared with the baseline year 2019, the total amount of particulate matter emitted by core making, molding/pouring and sand treatment processes of A foundry company in 2025 is expected to be reduced by 3 807.23 kg, which made the enterprise had a direct understanding of the emission reduction effect brought by the promotion and popularization of cleaner production technology. At the same time, five measures were put forward to prevent and control particulate pollution in foundry industry, which could provide reference for the development planning of pollution reduction in foundry industry during the “14th Five-Year Plan” period.