A scan condition determining apparatus determines scan conditions in a magnetic resonance imaging system. The scan condition determining apparatus includes: a setting unit for setting an imaging range, a desired spatial resolution and a desired SN ratio； and a determining unit for determining a matrix number in a frequency encode direction and a matrix number in a phase encode direction, based on the imaging range and the desired spatial resolution set by the setting unit and determining physical parameters different from the matrix number in a frequency encode direction and a matrix number in a phase encode direction, based on the determined matrix numbers, the set imaging range and the set desired SN ratio.
