The invention discloses a manipulator of an automatic molding machine for a long frame of a solar cell module. The manipulator comprises a sliding base, wherein the sliding base is slidingly mounted on a rack of the automatic molding machine and is driven by a sliding base power device mounted on the rack for cross sliding; a pair of support arms is arranged on the sliding base; a rotating shaft is rotationally mounted between the support arms; the rotating shaft is driven by a rotating shaft power device mounted on the sliding base for rotation; at least one fixture is fixed on the rotating shaft; the fixture comprises two fixture monomers capable of clamping or releasing sectional materials and arrayed around the periphery of the shaft center of the rotating shaft; and each fixture monomer is driven by the rotating shaft to sequentially pass through a 3:00 punching station, a 6:00 transition station and a 9:00 heading blanking station from a 12:00 reclaiming station. The manipulator can clamp the sectional materials to complete the switching of reclaiming, punching and heading stations, and meet design requirements for automatic molding of the long frame.