the results, recommendations regarding the prediction of displacement accumulations for large-diameter monopiles in sand were given. Therefore, it has important theoretical significance and engineering practical value to study the dynamic response of wind turbine foundation under the action of wind, wave and current load. Since experimental research can describe the law of pile-soil interaction more intuitively, many researchers currently use various experimental methods to conduct research on offshore wind turbine foundations under complex ocean loads. For example, field test, wave pool and wind tunnel test, centrifuge test, among which the most widely used is constant gravity model test (2013) [4]. From the perspective of experimental technology, in the current experimental research on offshore wind turbine foundations, prototype observations and field tests can more realistically reflect the effect of original sea conditions on structures. [PERSON] et al. (2016) [5] carried out field tests under vertical and horizontal loads on offshore wind turbine foundations. The study found that the pile-soil interaction is very sensitive to the nonlinear characteristics of the soil and found that the results using the p-y curve method recommended by the API code overestimated the displacement and bending moment of large-diameter piles in clay. [PERSON] et al. (2012) [6] carried out a series of field tests on large-diameter high-pile foundations in the ocean for soft clay sites and proposed a hyperbolic p-y curve suitable for the test results. At the same time, the method of deriving the displacement, bending moment and soil resistance of the pile body according to the measured data is effective. However, in general, due to the particularity of the original site, such tests are only aimed at sea conditions in some special sea areas, and their applicability is limited. On the other hand, due to the difficulty of offshore operation and the difficult control of test conditions, it is difficult to obtain effective data on the dynamic response of wind turbine pile foundations in such tests. In addition, the current wave pool and boundary layer wind tunnel test technology provides the possibility to simulate the real marine environment, such as (2014, 2009, 2008) [7; 8; 9], such projects have developed and installed multiple wave generators that can generate high and multi-directional deep-water waves while allowing stratified surface flow in one direction. With only one correction, the system can accurately generate a new wave field from zero. However, there are also problems such as imperfect wind and wave control technology and low performance of wave and wind generation. At present, there are many experiments on new structural forms such as floating wind turbine foundation, but there are few experiments using such techniques to investigate the interaction of piles and soils. When the test conditions for wave and wind generation are lacking, most researchers actively design and develop simple mechanical devices to simulate the effect of marine environmental loads on structures. The main method is to simplify the complex marine environmental loads into low-frequency cyclic loads. For example, the Danish scholar [PERSON] (2012) [10] used the actuator to load by \"rocking pile\" to simulate the horizontal circulation effect of the dynamic load of the marine environment on the monopile foundation. In addition, most scholars used self-developed loading devices (2012) [11] to load the model structure to meet the loading requirements of high-cycle tests, the realization principle was to use the reciprocating eccentric wheel to drive the pile movement, and this kind of device had been adopted by many famous scholars at home and abroad. However, such loading devices cannot arbitrarily change the load frequency and amplitude in a single test. It is difficult to consider the difference in the directionality of the marine environment load, so the load characteristics of this kind of test load and the real marine environment are also different.