The bimetallic iron-copper based metal-organic frameworks (FeCu-MOFs) with rich chlorine were synthesized and used to remove gaseous elemental mercury (Hg-0). The mercury removal performance on the bimetallic porous material was studied based on a variety of characterization and analysis methods. The results suggest that the synthesized FeCu-MOFs have good crystallinity and high element dispersity. The bimetallic MOFs materials have a high Hg-0 removal efficiency (higher than 90% in various conditions). O-2, HCl, and NO in the flue gas can improve Hg-0 removal efficiency. Moreover, FeCu-MOFs materials have good abilities to resist water vapor and SO2 poisoning. According to the adsorption kinetics analysis, the mercury equilibrium adsorption capacity of FeCu-MOFs is 12.27 mg/g. Finally, the Hg-0 removal mechanism on the bimetallic FeCu-MOFs has been proposed. The whole mercury removal process conforms to the Langmuir -Hinshelwood mechanism.