Abstract: During the era of Web 2.0, library digital resources construction goes through the first perception stage, widely applying stage, mapping Lib 2.0 stage and integration and sharing stage. The library digital resources construction during this period contains the same as times law, individuation developing law and diversification construction law. It is helpful for library circle to grasp the development direction and trend of digital resources construction scientifically and guide the practice of digital resources construction during the network environment analyzing the locus of library digital resources construction, holding its development venation and summarizing the law during the era of Web 2.0.

Key words: era of Web 2.0; library; digital resources construction