Bridge floor cross slope measuring device

The invention discloses a bridge floor cross slope measuring device, which comprises a measuring system, a moving part and a track frame body assembly, and is characterized in that the moving part comprises a wheel position fixing part, a resistance reduction rolling shaft, a transmission belt, a driven wheel, a main transmission wheel, a resistance reduction ball and a motor, the motor is fixed on the wheel position fixing part, and the motor drives the resistance reduction rolling shaft, the transmission belt, the driven wheel, the main transmission wheel and the resistance reduction ball to operate; the track frame body assembly comprises two distance measuring instrument running tracks, two left and right running tracks, a transverse connection cross beam and a plurality of supporting leg assemblies, by adopting the arrangement of the application, the system can be suitable for measurement and control in the construction process of various concrete cast-in-place box girders, and the measurement system is