Laser measuring instrument for railway work lifting and lining path

The invention discloses a laser measuring apparatus for track lifting and turning of railway engineering affairs, and the laser measuring apparatus comprises a laser emitter device, a measuring device and two travel dollies, wherein, the laser emitter device and the measuring device are respectively arranged on one travel dolly. A wireless communication device is arranged on the laser emitter device and the measuring device, wherein, the laser emitter device comprises a track lifting LASER, a turning track LASER, a laser data processor and a display, and the measuring device comprises an optic lens, a CCD sensor, a measured data processor, a display and a horizontal sensor. The invention utilizes the laser as a datum line, and the CCD sensor is used as a collimation detector, thus, the measuring problem of track lifting and turning quantity of steel rails with long length of over 200 metres of the railway engineering affairs is solved, and the smoothness of railway lines can be detected in the high precision way. The invention provides reliable measuring bases for railway maintenance and has the advantages of high measuring precision, operation efficiency improvement and reduction of the labor intensity of workers.