The calibration method of Shore durometer test force is introduced in this paper. According to the requirement of the quality of rubber products, the measurement performance of Shore durometers is particularly important, and according to ASTM D2240-2015 Standard Test Method for Rubber Property -Durometer Hardness, a new method for the calibration of Shore durometers was studied. The use of variable arm lever balance technology makes up for the shortcomings of the existing calibration methods, which can ensure the accuracy of the test force parameters of Shore durometers.