The invention relates to a redundancy control protection system, which comprises a station level and a device level, wherein the device level comprises a bipolar control level, a unipolar control level and a converter valve control level; the station level, the unipolar control level and the converter valve control level are in communication connection sequentially; the station level is in communication connection with the bipolar control level; the output of the bipolar control level is in communication connection with the output of the converter valve control level; the station level is used for receiving a control command signal from an operator control system or a telecontrol system; the bipolar control level distributes transmission power for each converter transmission circuit according to an operation mode given by a dispatching center and a transmission power instruction; the unipolar control level realizes active and reactive power control targets required by the system; and the converter valve control level is used for receiving a control command from the unipolar control level and receiving information from the converter valve, thereby realizing control and protection functions on the converter valve. The system of the invention improves reliability of the DC protection work, and reduces the mistrip risk.