The present invention provides an acoustic generator for an MRI device which is good for communication with a subject and an MRI device having the acoustic generator. An acoustic generator for an MRI device has an acoustic coil, a diaphragm which oscillates based on force generated in the acoustic coil by an interaction between current flowing in the acoustic coil and a magnetic field for imaging generated by the MRI device, and a supporting member oscillatably supporting the diaphragm. A force generated in the acoustic coil changes according to a change in the current flowing in the acoustic coil. The diaphragm vibrates air in accordance with the change in the force, thereby generating acoustics.