Tibet covers a vast territory with a relatively low road network density. Bridges in the plateau region are the vital links of the "sky road" and the hope of the Tibetan people for a better life. At present, with the continuous increase in traffic volume, the load on highway bridges is growing heavier. In addition, the design load grades of bridges in Tibet are generally low and the service environment is harsh, causing bridge disease problems to become increasingly prominent. The commissioning of this 18-meter bridge inspection vehicle strengthens the research on the data management system for typical bridge diseases on Tibet's trunk highways. It has important practical significance and value for improving the maintenance level of bridges in Tibet and extending their service life, and it also helps advance the monitoring and reinforcement level of bridges in the region.