Abstract: Different hole expansion testing machines were used to expand the holes of 780DP steel and 980DP steel cold-rolled automotive plates. The performance of the expanded hole specimens was analyzed using methods such as ultimate hole expansion ratio testing, scanning electron microscopy analysis, and metallographic examination. The results show that under the same material conditions, different prefabricated hole processing methods result in different test results for the ultimate hole expansion ratio. The ultimate hole expansion ratio of the sample drilled with a laser cutting machine was higher than that of the sample punched with a punching machine.