In an MRI apparatus, an executing unit executes an image taking sequence according to a parallel imaging method so as to collect MR signals by using a plurality of RF coils a reconstructing unit reconstructs an MR image from the MR signals an unfolding processing unit performs an unfolding process to unfold aliasing that has occurred in the MR image, by using sensitivity distribution data indicating a spatial sensitivity distribution of the RF coils a judging unit judges whether the unfolded image includes one or more pixels of which the pixel values are abnormal and when the judgment result is in the affirmative, a correcting unit corrects the sensitivity distribution data so that the pixel values of the pixels become closer to a normal value. After the sensitivity distribution data has been corrected, the unfolding processing unit performs the unfolding process again by using the corrected sensitivity distribution data.