An ice making device may include an ice making unit having an ice tray and a heater; and a drive unit connected with the ice making unit. The drive unit may include a drive source, a cam body driven by the drive source, a leaf switch in which a leaf contact piece is displaced by a cam face of the cam body to perform “ON” or “OFF” operation, and a case body. The case body is provided with a first partition wall which partitions the inside of the case body into a first space and a second space, and the leaf switch and at least the cam face of the cam body is disposed in the second space. The first space may be preferably located on an ice making unit side and the first space is interposed between the second space and the ice making unit.