Track flatness measuring method

The invention provides a track flatness measuring method. The method includes the following steps of (1) placing a walking mechanism with an acceleration sensor, an angular velocity sensor, a magnetic sensor on a track, and moving the walking mechanism to the corresponding position; (2) acquiring the original data of the acceleration sensor and the angular velocity sensor, and obtaining the pitch angle, the yaw angle and the roll angle of the walking mechanism according to the original data; and (3) determining whether the pitch angle, yaw angle, and roll angle obtained in step (2) within the standard threshold interval, and if the angles are in the standard threshold interval, the track is flat, if not, the track is not flat. The track flatness measuring method can intelligently determine the flatness of the track installation and realize the simplicity, safety and efficiency of the operation of the track installation and detection.