A magnetic resonance imaging apparatus includes a data acquisition unit, a frequency offset acquisition unit, a frequency modulation unit and a phase shift correction unit. The data acquisition unit acquires pieces of echo data due to nuclear magnetic resonance after applying an excitation pulse. The frequency offset acquisition unit acquires a frequency offset. The frequency modulation unit frequency-modulates the excitation pulse according to the frequency offset. The phase shift correction unit cancels a phase shift occurring on each of the pieces of the echo data due to a frequency modulation according to the frequency offset during a readout of the pieces of the echo data.