Abstract: In order to accurately determine the impact of the satellite solar array in its horizontal development test process, and reduce the negative effects of the impact during the test, a mathematical model is established for simulating the test process. The impact test scheme and the impact inhibition mechanism are designed. As an example, a model test is carried out for a certain satellite's solar array to verify the impact effect during the development process. The results show that the impact suppression mechanism works well with an effective suppression of the acceleration at the hinges.