When the provincial library opened, it had 800,000 books. After decades of accumulation, it now has 2.64 million books. Among them, Chinese and foreign books 1.97 million copies; 142,000 ancient books; 506,000 newspapers and periodicals; 380 micro-copies; More than 20 thousand audio-visual materials. The focus of the collection is all kinds of documents needed for industrial and agricultural production and scientific research in this province; The collection of reference books and retrieval periodicals is relatively complete; Due to the geographical relationship, the provincial library also has a large number of Russian and Japanese materials; There are nearly 10,000 kinds of local documents collected, which reflect the geology and mineral landforms, product resources, industrial and agricultural production, customs and so on in Northeast China and our province. There are 385 kinds of 6602 rare books in the collection, including the Great Prajna Paramita Classic in the Late Tang Dynasty, Chronicle of the Mirror in the Late Song Dynasty, the newly compiled Selected Works in the Late Han Dynasty, Yunfu Qunyu, the new edition of Gong Bei's Ancient and Modern Elegant Collection in the Ming Dynasty, the new edition of Nangong Ancient and Modern Elegant Collection, and the Qingganlong publication. Since 1980, the provincial library has established book exchange relations with 15 libraries in seven countries, including Japan, the United States, Canada, the former Soviet Union, North Korea and Singapore, and obtained newly published books and periodicals from these countries.