An electric power steering apparatus comprises a steering shaft including an input shaft connected to a steering wheel, an output shaft connected to a steering gear device, a torsion bar for transferring torque to the output shaft from the input shaft, the steering shaft being rotatably supported in a steering column, torque detection coils disposed outwards along an outer periphery of the steering shaft, and a worm wheel meshing with a worm rotationally driven by a motor driven corresponding to detected torque and fixed to the output shaft in terms of its rotation, wherein the steering shaft is rotatably supported via a bearing provided between the worm wheel and a column-sided member on the front side of the vehicle.