The invention discloses a nuclear magnetic resonance examination device with a disinfection function for the imaging department, and relates to the field of medical equipment. The device comprises a support seat and a bed body, when the patient is subjected to nuclear magnetic resonance examination, a pillow table is pressed down by the head of a patient by matched use of the pillow table, a lifting rod, a spring, a piston plate, a catheter, a nozzle, a suction pipe and a storage box, the piston plate inside a compression cavity slides downwards, a certain amount of disinfectant inside a storage box can be automatically sucked into the compression cavity through a suction pipe under the action of air pressure for temporary storage, and when the patient leaves the bed body, the pillow table loses the downward pressure of the patient head, and the pillow table is reset under the elastic force of a spring, The piston plate inside the compression cavity is driven to compress disinfectant temporarily stored in the compression cavity, the disinfectant in the compression cavity can be compressed into the catheter, disinfecting spray is conducted through the nozzle on the bed body, the automatic disinfection function on the examination bed is achieved, manual operation is not needed, convenience is achieved, and bacterial spread infection is effectively avoided.