Unstructured data refers to data that has no uniform structure. For example, images, faxes, photos, documents, audio, video, etc. Most data in the world is unstructured. Unstructured data is growing rapidly, and storage space requirements are large. Unstructured data does not have a strict unified structure, and the access management mechanism is different. It is processed by NoSQL (Not Only SQL) and needs to be used and managed with the help of corresponding software and hardware. Therefore, the scalable and distributed storage mechanism and comprehensive processing mechanism of unstructured data is a hot research topic.