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To obtain the force and displacement parameters of the specimen in the whole process of impact with low cost and high precision, a new drop hammer test system was developed. A magnetic sensor is used to measure the displacement of the hammer. A piezoelectric dynamic force sensor is used to measure the impact force. The hammer is lifted and released by an electromagnet and an electric winch. T he control, data acquisition and analysis of the impact test system are realized by NI LabVIEW. To validate the correctness of the new drop hammer test system, a comparison between drop test and simulation for a 304 stainless steel pipe was carried out. The comparison results show that the force-displacement curve drawn in accordance with the measured data matched well with that by simulation, indicating that the accuracy of the drop hammer test system was high.