The invention discloses an intelligent crawler trolley for laser measurement of the section parameters of a tunnel of rail transit. The intelligent crawler trolley comprises an intelligent crawler trolley body, a core board and control panel, the core board and control panel is fixedly arranged inside the intelligent crawler trolley body, a distance sensor is fixedly arranged in the middle of thetop end of the intelligent crawler trolley body, a speedometer and an inclination sensor are fixedly arranged on the two sides of the top end of the intelligent crawler trolley body separately, and ahorizontal two-dimensional laser radar and a vertical two-dimensional laser radar are fixedly arranged at the top and the bottom of the front end of the intelligent crawler trolley body separately. According to the intelligent crawler trolley, an intelligent laser radar measurement technology is adopted in the construction in the tunnel of the rail transit, scanning measurement is carried out on the tunnel, in the intelligent laser radar measurement technology, a reflecting prism does not need to be arranged, non-contact measurement is realized, the mass point cloud data of a scanned object can be acquired in a high-density and high-resolution mode, meanwhile, the requirements for the environment light and the temperature are low, a plurality of parameters required by construction can be obtained, and therefore the measurement accuracy is improved.