Hazardous trace elements (HTEs) emitted from coal combustion have caused great harm in the environment and on human health. Partitioning and emission of eight HTEs, namely, Zn, Sb, Pb, Cd, As, Cr, Mn, and Ba, were conducted on a 100 MW coal-fired power plant, which was equipped with selective catalytic reduction (SCR), electrostatic precipitator (ESP), and wet flue gas desulfurization (FGD). US EPA Method 29 was used to sample the eight HTEs in flue gas at the four sites before or after each device, simultaneously. Feed coal, bottom ash, ash from ESP (ESP ash), limestone slurry, and desulphurization wastewater were collected at the same time. Results show that mass balance rates of eight HTEs of the whole system and each device are in the acceptable range of 70%-130%. The studied HTEs are mainly distributed in ESP ash with a relative mass distribution ratio of 86.23%-98.25%, followed by 1.65%-13.67% for bottom ash. Concentrations of Cd, Sb, As, Cr, Pb, Zn, Mn, and Ba in flue gas at the inlet and outlet of SCR are 18.22, 78.60, 380.57, 1416.76, 3021.00, 3746.24, 5720.50, and 20355.09 mu g/m(3) and 18.02, 60.83, 358.42, 1418.04, 3023.00, 3753.47, 5596.90, and 20382.44 mu g/m(3), respectively, with a high particulate form proportion of 99.39%-99.99%. Removal efficiency of the eight HTEs in flue gas by ESP + wet FGD is 99.78%-99.96% with that of 99.43%-99.95% for ESP. 18.10% of Sb, 22.25% of Ba, 23.16% of Cr, 28.39% of Mn, 31.15% of As, 53.17% of Pb, 61.26% of Zn, 68.47% of Cd, in the flue gas is captured by wet FGD compared to their concentration at its inlet. Emission concentrations of Cd, Sb, As, Pb, Cr, Zn, Mn, and Ba in flue gas to atmosphere are 0.03, 0.07, 0.15, 1.42, 3.11, 6.74, 7.82, and 8.11 mu g/m(3), with corresponding emission factors of 0.25, 0.61, 1.23, 11.53, 25.07, 54.93, 63.46, and 65.90 mg/ (t coal), respectively. All the studied HTEs except Mn are prone to enrich in ESP ash than bottom ash.