The utility model belongs to the technical field of packaging bag production, and particularly relates to a packaging bag
composite film puncture testing device which comprises a testing table, supporting legs are installed at the bottom end of the testing table, two through holes are formed in the upper end of the testing table, a fixing mechanism is arranged on the testing table, a top plate is installed at the upper end of the testing table, and a clamping mechanism is arranged on the top plate. Two rectangular holes are formed in the upper end of the top plate, a
protection mechanism is arranged on the top plate, and a shell is installed in the middle of the bottom end of the top plate. According to the utility model, the
hydraulic cylinder drives the puncture head to move downwards to carry out a puncture test, the puncture strength of the packaging bag
composite film can be known through a pressure value transmitted by the
pressure sensor, and the two sides of the packaging bag
composite film can be positioned through the arrangement of the fixing mechanism, so that the stability of the test is ensured; and through the arrangement of the
protection mechanism, the puncture head can be shielded and protected after the test of the device is completed, so that the sharp end of the puncture head is prevented from damaging foreign objects or personnel and the like, and the safety is improved.