In order to know the biliometric characteristics of Library& information, this paper makes a statistic and diachronic analysis through the CNKI data about its issued theses, key works, institutions, citation, H index etc. The results show: Library & information always stands in the forefront of academic research; its citation & cited frequency, H index are on the rise; the proportion of funded articles was significantly higher than that of similar journals. The data demonstrate that Library & information has become one of the journals with higher academic level and greater influence. But there is room for improvement because the cited rate and H index are still at the average level.