The invention provides a converter station hierarchical simulation test system. The converter station hierarchical simulation test system comprises a large-step simulation device, a small-step simulation device and a simulation server. The small-step simulation device is arranged on an engineering site, is used for simulating direct-current equipment or a system to be simulated, and is connected with engineering equipment needing to participate in simulation; the large-step simulation device is arranged in a simulation center and used for simulating a to-be-simulated alternating current system. The simulation server is arranged in the simulation center. The method is used for modeling, signal processing and waveform display. In order to ensure the real-time performance, direct-current equipment or a direct-current system which is high in change speed and communication requirement and needs to be connected with engineering equipment is simulated through small-step simulation device arranged on an engineering site. Alternating-current equipment which is low in change speed and low in communication requirement is simulated through large-step simulation device arranged in the simulation center, and the engineering equipment on an engineering site does not need to be transported to the simulation center for a long distance.