Abstract: To solve the problem of low efficiency in collecting defect information of bridge and tunnel equipment through tapping and text input in existing App, this paper designed a rapid inspection App for railway bridge and tunnel equipment. The App provides functions such as inspection plan management, equipment map display, data collection and historical defect information query. The paper adopted the integrated technology of the BeiDou Navigation Satellite System (BDS) and Geographic Information System (GIS), and realized the accurate real-time positioning of bridge and tunnel inspectors, as well as the rapid identification, precise push and visual display of bridge and tunnel equipment to be inspected on the day and their structural information around the inspectors. By using data transmission technologies of the railway intranet and extranet, it guaranteed the real-time performance, integrity and security of data during cross-network transmission. The designed App effectively improves the on-site efficiency of inspectors in collecting defect information of bridge and tunnel equipment and supports the efficient closed-loop operation of production systems.