Abstract: In order to avoid water soluble salt emission from wet flue desulfurization brume in coal-fired power plant,a dry high-efficiency technology for coal-fired plants flue gas pollutants control was proposed in this paper.Pilot scale desulfurization test was carried out in a170 t/h pulverized coal fired boiler,and the denitrification tests were implemented in 75 t/h pulverized coal fired boiler and 220 t/h CFB boilers.Products quality and tech-economic were also analyzed.Results show that the concentration of SO2 after treated decreases to 20 mg/m~3 from 4 200 mg/m~3,and the content of NO_x reduces to 15 mg/m~3.Sulfur content in products is 0.73%,which meets the national standard.Investment cost is 1 million and running cost of desulfurization and denitrification in a 170 t/h pulverized coal fired boiler is 3. 582 million/year,meanwhile the revenue is 13.139 million/year due to electricity price compensation and economizes in charges for disposing pollutants.Further,the technology features lower the water consumption,none water soluble salt emission,less equipment investment and maintenance costs,thus it is thought be a appropriate approach to solve haze problem in China.