An apparatus includes acquiring means for acquiring echo data of a plurality of views in which a phase difference between water and fat is 2.pi./m with spins within a subject brought to the SSFP state and repeating the acquisition for k=0 through M-1 with a step difference in a phase of an RF pulse of 2.pi.k/M; transforming means for conducting Fourier transformation on the echo data based on the phase step difference; separating means for separating water data and fat data respectively in F(0) term and F(1) term of the Fourier-transformed data using the phase difference between water and fat; adding means for obtaining a sum of absolute values of at least the water data or fat data in the F(0) term and F(1) term; and image producing means for producing an image based on the sum data.