Complex systems typically use analytical methods and experimental methods for dynamic load resistance design. Dynamic load resistance analysis design loads are usually obtained through dynamic analysis methods, while experiments are conducted using testing machines based on the weight of the equipment to evaluate its performance. However, there is currently a lack of research on the relationship between analytical loads and experimental loads, leading to an unclear consistency between the results of the two methods. This paper investigates the structure and working principles of dynamic testing devices, as well as the dynamic action process, establishing simulation models and dynamic process simulation methods. The aim is to establish a quantitative relationship between dynamic load resistance analysis design loads and experimental loads, and to develop a digital method for dynamic testing that matches the dynamic design loads.