Railway rail settling detection device

The invention discloses a railway rail settling detection device which is characterized by comprising a first laser emitter, a second laser emitter, a first laser receiving array, a twisted-pair, a repeater, a CAN (Controller Area Network) node, an indication lamp and a second laser receiving array, wherein the first laser emitter and the second laser emitter are mounted on two steel rails in thevertical direction of each railway contact system strut; when the first laser emitter moves down along the steel rail, a laser beam irradiated onto the first laser receiving array by the first laser emitter moves down, and a settling volume of the steel rail is calculated according to an offset of the laser beam on the first laser receiving array; the second laser receiving array receives a laserbeam emitted by the second laser emitter; and when the second laser emitter moves down along the steel rail, the laser beam irradiated onto the second laser receiving array by the second laser emittermoves down, and a settling