In order to provide an NMR imaging device capable of distinguishing substances that cannot be distinguished by T2H, an NMR imaging device (1) according to this invention includes: a probe (3) capable of housing a sample in a static gradient magnetic field an application portion (5) configured to apply a π pulse having a Larmor frequency corresponding to the static gradient magnetic field at a predetermined position of the sample to the sample in a multiplexed manner at a predetermined time interval and an image processing portion (7) configured to determine a relaxation time based on a nuclear magnetic resonance signal of the sample, and perform imaging of the relaxation time.
