Abstract This paper investigates the physics concepts, basic principles, basic procedure, merit and demerit of Nuclear Magnetic Resonance Imaging. As a widely used medical technique, this type of imaging utilizes the inherent magnetic properties of protons in human cells. Superconducting magnets are generally enclosed in a large housing unit to scan various parts of the body. Although there are no biological hazards yet associated with this technique, extreme caution must be taken when wo...