In a magnetic resonance diffusion weighted imaging method and apparatus, an excitation pulse flips a magnetization intensity vector of nuclear spins, a subject from the Z direction into the X-Y plane; and a diffusion pulse is applied to the magnetization intensity vector flipped into the X-Y plane in order to perform diffusion weighting. A flip pulse is applied to a magnetization intensity vector that does not meet Carr-Purcell-Meiboom-Gill conditions in the X-Y plane after diffusion weighting in order to flip it back to the Z direction. A data acquisition sequence is activated to acquire imaging data from a residual magnetization intensity vector meeting the Carr-Purcell-Meiboom-Gill conditions in the X-Y plane.