With the objective of eliminating variations in signal strength, there is provided a magnetic resonance imaging apparatus in which the process of 90.degree.-exciting and 180.degree.-exciting spins of two slices intersecting each other respectively and receiving a spin echo generated from an intersection thereof is repeated while the intersection is sequentially parallel-moved to a plurality of lines, thereby to generate, based on the received spin echo, a two-dimensional image at the time that the plural lines are seen in a projection direction. In the magnetic resonance imaging apparatus, the lines are set at a matrix in which a phase direction is defined as a row direction and the projection direction is defined as a column direction. A plurality of the lines at which a predetermined number of column intervals are defined as mutual intervals are set in the respective rows. One line is set to each column. The numbers of the lines in the respective rows are common divisors for the number of the columns in the matrix and set identical to one another between the respective rows.