条形码技术是一种应用广泛的光电数据输入技术，具有编码、数据识别、数据采集、条码印刷等多项功能。本文简述了条形码技术的原理及其在方志馆编录、典藏、流通环节中的作用。论述了二维码技术的应用对方志馆在馆藏资料自动化管理和方志馆数字化建设方面产生的革命性影响。

Bar code technology is a widely used photoelectric data entry technology, including encoding, optical sensing, barcode printing and computer recognitions. The article summarizes the function of the bar code technology in the fields of local history library catalog, collection and circulation. It also disscusses the revolutionary influence of the applications of the twodimensional code technology on the automatic management and the digital construction of the local history library.