Three-point-form track irregularity measuring device

The utility model discloses a three-point-form track irregularity measuring device which comprises a power supply system and a data acquisition and analysis system, as well as a measure installing bracket and measure sensors which are connected with the power supply system and the data acquisition and analysis system, wherein the measure installing bracket is provided with a plurality of measuring points, and each measuring point is equipped with a measure sensor. The three-point-form track irregularity measuring device has flexible measuring way and high measuring accuracy, and is simple in structure and convenient in maintenance; and the damage to a track by the measuring mechanism can be reduced furthest on the basis of completing measurement, and the measuring structure is simple and the reliable; therefore, convenience is brought to the track irregularity measuring operation.