According to one embodiment, an MRI apparatus performs magnetic resonance imaging under a gradient magnetic field by providing a gradient magnetic field generation system with electric current so as to apply the gradient magnetic field on an imaging region. This MRI apparatus includes a condition setting unit and a load acquisition unit. The condition setting unit sets imaging conditions of the magnetic resonance imaging. The load acquisition unit acquires information on a waveform of the gradient magnetic field, and calculates respective electric loads for a plurality of frequency bands imposed on the gradient magnetic field generation system in a case of performance of the magnetic resonance imaging, based on the information on a waveform.