Steel rail unbalanced current monitoring device suitable for interval frequency shift track circuit

The utility model provides a steel rail unbalanced current monitoring device suitable for an interval frequency shift track circuit, and belongs to the technical field of railway signal equipment monitoring, and the device comprises a current monitoring device main body, a sensor and a sensor support. The current monitoring device body is installed in a protective cover of an interval frequency shift track circuit and connected to one end of the wire, the wire penetrates out of a lead penetrating hole of the interval frequency shift track circuit, the other end of the wire is connected to the sensor, the sensor is fixed to the sensor support, and the sensor support is connected with the current monitoring device body. The sensor bracket is fixed on a lead wire on one side connected with a hollow coil of the interval frequency shift track circuit; the sensor is used for collecting a current value in a lead wire on one side of the hollow coil in real time; the current monitoring device body is used for storing