With the appearance and development of complex structure wells, the research of filtration theory is facing a lot of difficulties while experiments of hydroelectric simulation can offer helps for it. In this paper, the author introduces the experiment through the following aspects, such as experimental principle, experimental apparatus, experimental procedure, experiment precision, and so on. The research shows that, the manipulator device can quickly fix position of the measurement station, the experimental data automatic measuring system can reduce the error of reading, both of them can enhance the efficiency of experiment greatly. The precision of experiments of hydroelectric simulation can satisfy engineering requirements completely, therefore, it can be used for the research of filtration theory of complex structure wells, as well as provide guidance for the production of oilfield.