The invention discloses a method for calibrating the temperature uniformity of vacuum equipment, belonging to the technical field of equipment temperature uniformity calibration field. The method is as follows: dividing the area under temperature measuring into sub-regions; selecting a type of metal to prepare a standard sample; putting the standard sample at the area under temperature measuring in a heater, vacuumizing, heating, reading the value T1 of the thermocouple when the standard sample melts and then cooling the standard sample; setting the heating rate, observing the state of the standard sample, and reading the value T0 of the thermocouple when the standard sample melts; and putting the standard sample in another area under temperature measuring, setting the heating rate, and reading the value of the thermocouple to work out the temperature deviation of the equipment. The method divides the area under temperature measuring into a plurality of sub-regions and then measures the melting points of the standard samples of crystalloids in all the sub-regions by taking the advantage of the physical property of fixed melting point of crystalloid. In this way, the method can accurately calibrate the temperature uniformity of the vacuum equipment.