The invention relates to a testing method for measuring a DSC curve of a phase change point of a metal material, belonging to the field of physical tests of the metal material. The testing method comprises the following steps: selecting a sample and carrying out an experiment test. In the step of selecting the sample, a test steel sample is selected before the step of carrying out the experiment test; annealing treatment is carried out on the selected sample; the annealed sample is subjected to surface treatment; after the sample is treated, the treated sample is subjected to the experiment test; in the experiment test process, the sample is heated from a room temperature and a temperature rising speed is set to be 5K/min-10K/min; and a DSC data curve in the process is automatically collected by using a thermal analyzer; and a phase change peak is accurately identified from the collected DSC curve. According to the testing method for measuring the DSC curve of the phase change point of the metal material, the annealing treatment is carried out on the sample before the test, and DSC curve impure peaks caused by strain energy and defects are basically eliminated; and the phase change peak is remarkable and the obtained phase change point data are accurate.