Abstract: Based on the study and analysis of air pollution dispersion fast prediction model, the pollution diffusion simulation method is proposed based on GIS and the visualization methods and pathways of the pollution dispersion simulated results are studied.Upon the Supermap platform, the visualization of simulated results is realized, which can verify the validity and practicability of the model and algorithm.The method provides technical support and basis for dealing with the air pollution accident disaster emergency.

Key words: Air pollution, Prediction model, GIS, Visualization