Abstract: Coal-fired industrial and residential boilers are one of the key targets of air pollution control in the Beijing-Tianjin-Hebei area. Understanding the characteristics of air pollutant emissions from coal-fired industrial and residential boilers is critical for formulating a control strategy for the area. Information on coal-fired industrial and residential boilers in the Beijing-Tianjin-Hebei area was summarized and analyzed, including capacity and type of boilers, and type and removal efficiency of dust control techniques. Based on the information of technology penetration and coal consumption, an emissions inventory of air pollutants from coal-fired industrial and residential boilers in this area was developed, and the effects of technology penetration on the emissions patterns were analyzed. The results showed that the small boilers with grate furnaces equipped with wet scrubbers or multi-cyclones were the majority in this area. The emissions of SO₂, NO_x, PM, PM₁₀ and PM_2.5 from coal-fired industrial and residential boilers in 2012 were 90.81×10⁴,0.88×10⁴,1.46×10⁴, 14.64×10⁴ and 8.07×10⁴ t, respectively. Boilers smaller than 10 t/h or larger than 35 t/h contributed most of the emissions. Tianjin, Shijiazhuang, Baoding and Tangshan were the top four cities in terms of emission volume. Heating supply, food manufacturing, chemical industry and papermaking were the major industries contributing to the emissions. The huge variety of boiler technology penetration in different cities indicated differentiated emission control strategies, such as using natural gas instead of coal or central heating, are needed for each city in this area.