The comparison of three different kind of simulation by screen3 model, Tem-8 model and EPA formula were undertaken to get a potential concentration and hourly maximum concentration of fugitive dust produced from each construction site in the downtown area of puchon city. The amount of dust estimate U.S EPA formula and fugitive dust formula 22.6078g/sec, 27.9572g/sec respectively. Hourly maximum concenstration at the distance from each construction site by screen3 model are average of $78.89{sim}728.40{mu}g/m^3$ and Tem-8 model are $97{mu}g/m^3$ in site-1, $241{mu}g/m^3$ in site-2, $268{mu}g/m^3$ in site-3, $232{mu}g/m^3$ in site-4, $69{mu}g/m^3$ in site-5, $36{mu}g/m^3$ in site-6. Through our experiment, Screen3 model is more encouragingly used than any other model.