The purpose of this research is to study breaking test methods and equipment in Taekwondo Dan Promotion. This study includes a Universal Testing Machine (Marui brand, made in Japan) by using the three-point bending test method to analyze whether plastic composite boards and boards are stable enough to receive the kicking load. We used one-way ANOVA, two-way ANOVA and repeated measures to analyze the kicking load for the breaking difference between a new composite board and an old composite board. This study used Pearson Regression analyzing the weight of composite boards to predict the independent variable of kicking load. The experimental results was as follows: The average load for a new composite board was 193.2kg, and 123.4kg for an old composite board. After 15-time breakings, the average loads of old and new composite boards have obvious differences and gradually decline on loading. The average kicking load of the boards was 566.5kg. The maximum load was 786kg, and the minimum-kicking load was 160 kg. The heaviest weight of the board was 1.48 kg. The lightest weight was 0.64kg. There was a distinguished relation between the weight of boards and the kicking load. We can effectively calculate the load from the weight of the board. When the weight of the board is 1 kg, for instance, the calculate load will be 431 kg. According to the result, we confirm that there is a distinguished difference between the breaking test methods and equipment. Therefore, we propose the Chinese Taekwondo Association to make changes on testing methods in Dan Promotion and can use this technical breaking tester in the near future.