Abstract: As the coming of the big data era, the digital resources growth dramatic Traditional storage has many problems, such as hard to expand, low security and so on,the cloud storage has the characteristics of easy to expand, low cost and high security which can solve the massive storage problem. Taking the National Museum Library as an example, this paper combs and reviews the general situation of data and the present situation of storage, analyzes the problem of the traditional storage, proposes the necessity of cloud storage. This paper constructs a digital resource preservation system based on cloud storage technology and puts forward solutions and corresponding construction strategies for such library cloud storage, in order to provide some reference for library to use cloud storage.

Key words: cloud storage, long-term preservation of digital resources, AWS