In recent two years, due to the epidemic situation, the proportion of digital resources in library collections is increasing, and the demand for digital equipment is also increasing. Therefore, Hanlong's non-contact book scanner has ushered in a wave of sales boom. The most popular scanners include DSC omni-directional image acquisition system for book games and OS Q high-precision large-format book scanner for book games. These two book scanners are industry benchmarks in image quality and work efficiency, and constantly push the digitalization level of libraries to a new height.