To correct phase shift between views due to magnetic field nonuniformity by limiting an area to collect reference data into the area near a magnet center concerning a phase encode axial direction.

Scan conditions are designated, the reference area is designated, areas (a) and (b) away from a magnet center MC with respect to the phase encode axial direction are selectively excited and saturated and MR data due to pulse sequence not. to perform phase encode are collected and defined as reference scan data. These reference scan data are data collected only from a reference area (c) and data from the areas (a) and (b) are not included. Next, the MR data are collected by the pulse sequence to perform phase encode and defined as main scan data. Then, the phase of the main scan data is corrected by the reference scan data, data are generated and an image is prepared.