A magnetic resonance imaging apparatus is provided with a pair of static magnetic field uniformity controlling members 30A and 30B which are disposed adjacent to respective pair of magnetic plates 25A and 25B and of which cross sections configured so as to further enhance static magnetic field uniformity in static magnetic field region 21 and a pair of flat plate shaped eddy current suppressing members 29A and 29B which are disposed adjacent to respective pair of gradient magnetic field coils 28A and 28B and shield influences of gradient magnetic field generated by the gradient magnetic field coils 28A and 28B on the static magnetic field uniformity controlling members 30A and 30B of pole pieces. The eddy current suppressing members 29A and 29B are easily manufactured from a flat plate member simply by cutting the same while following the shape of the gradient magnetic field coils 28A and 28B. Further, with the provision of the eddy current suppressing members 29A and 29B influences due to eddy current and residual magnetism induced by the gradient magnetic field coils 28A and 28B on the static magnetic field uniformity controlling members 30A and 30B are suppressed and uniformity in the uniform static magnetic field region is enhanced.