The embodiment of the invention provides a DC interference test control system. The system comprises a DC interference simulation device and an upper control device, wherein the DC interference simulation device comprises a control panel and a realization circuit, and the control panel comprises an upper machine communication unit and a component driving unit; and the upper control device comprises a lower machine communication unit, a quick contact adjusting unit, a simulation resistance adjusting unit, an equivalent capacity adjusting unit and a grounding resistance adjusting unit. The upper control device sends a generated control instruction to the control panel of the DC interference simulation device, and the control panel controls components in the realization circuit of the DC interference simulation device according to the control instruction. The DC interference test control system is used for carrying out relay protection DC interference test detection, and the DC groundingresistance and the AC entering resistance of tested secondary equipment are increased.