To obtain clear blood flow/blood vessel images in an MR image.

An MRI apparatus 100 is equipped with an image processing unit 10 and an MR signal detecting unit 15. In the image processing unit 10, a low pass processing section 1 executes low pass filter processing and phase correcting processing to raw data of the MR signal detected by the MR signal detecting unit 15, a pseudo high pass processing section 2 executes high pass filter processing while reducing the signal intensity of a low-frequency part, a Fourier converting section 3 executes homodyne Fourier transform process, and a real number component calculating section 4 calculates real components and forms an image, thereby an image enhancing the contrast of a blood vessel part present in a middle and high-frequency area is generated by suppressing the contrast of a brain real part present in a low-frequency area in generating the MR image of the brain.