For double statorssingle rotor electromagnetic brake, two kinds of magnetic circuit structures were researched. With the threedimensional solver of Maxwell software, the electromagnetic brake of two magnetic circuit structures was simulated by the finite element method, and its feasibility was verified. Under the comparison of the electromagnetic brake of two magnetic circuit structures, the rotor eddy currents, braking torque and braking torque responses for different exciting currents, different rotor materials and different air gap length were obtained, and the results showed that the first magnetic circuit’s braking characteristic was superior to the second one for double statorssingle rotor electromagnetic brake.