Based on the particulate emission inventory during the heating period in Baotou Steel Industrial Park, the model of CALPUFF atmospheric dispersion is used to conduct the dynamic regulation on allowable emission amount, the simulation and control results are able to provide some theoretical guidance for the control strategies and measures for the cluster pollutants emission, and are of benefit to realize stable standard of the atmospheric environment. The simulation results indicate that the concentration contribution rate to the control points by cluster pollutant source unit emission amount reduces with the altitude of pollutant source increases, low and short emission sources as well as area emission sources should become the key control points. During the heating period, the meteorological conditions that do not conduce to the spread of the pollution, the maximum allowable emission amount of cluster pollution source reduce to 8.82% of existing emissions; meanwhile the meteorological conditions conduce to the pollution dispersion, the maximum allowable emission amount decreases to 12.03% of that. Therefore the nation air ambient quality standards of the control area are able to meet.