Abstract: In order to promote the information based management of the whole service life cycle of railway line equipment, solve the problem of inconvenient inquiry of turnout and track components related information for railway maintenance worker, combined with the whole life intelligent management information platform of turnout and track components developed by China Railway Hohhot Group Co. Ltd., this article designed an application program of turnout and track components information inquiry based on Android by using QR code and SQLite light database technology. Railway maintenance worker could use it to scan the QR code on the turnout and track components, to get the information of turnout and track components, improve work efficiency, and has practical application value.