A disclosed injection molding machine includes an ejector rod that is used to protrude a molding product from a mold, a driving source that moves the ejector rod in an axial direction of the ejector rod, a controller that controls the driving source, a position detector that detects the position of the ejector rod, and an operations unit that receives an input operation input by a user, wherein the controller sets up a current position of the ejector rod, which is detected by the position detector when the operations unit receives a first button operation operated by the user, to be a waiting position of the ejector rod after protruding the ejector rod or to be a protruding position of the ejector rod.