Provided is an injection molding machine capable of reducing the vibration at the time of the operation of the injection molding machine. An injection molding machine includes a mold clamping unit that performs mold closing, mold clamping, and mold opening of a mold unit; an injection unit that fills the interior of the mold unit with a molding material; and a frame that supports at least one of the mold clamping unit and the injection unit. The frame has a beam and a reinforcing member joined to the beam.