The National Library of China is a key cultural project in the Tenth Five-Year Plan. This modern digital library will become the largest collection base of Chinese literature in the world, and also the most advanced information network service base in China. The New Library covers an area of 250,000 square meters, making it the third largest library in the world after the Library of Congress and the Library of Moscow.

The "cryogenic freezing insecticide warehouse" successfully cooperated with the National Library should not only meet the requirements of cryogenic temperature, but also meet the requirements of fire protection design. The method of cryogenic insecticide of books using cryogenic warehouse is simple and safe. It has the advantages of good insecticidal effect, no harmful effect on the paper and handwriting of books, and no toxicity and harmlessness to human body. At present, this technology has been applied to freeze insecticide of ancient books before storage, but no ancient books have been released after storage.