The invention relates to a management method for unstructured data based on a cloud computing environment, belonging to the technical field of computer data management. In the method, unstructured data management based on a plurality of cloud computing storage systems is supported; an architecture structure provided with a cloud storage system of loosely-coupled unstructured source data, a characteristic data cloud storage system of non-text unstructured data, a characteristic data cloud system of text unstructured data and other storage subsystems is adopted; and the source data and characteristic data of unstructured data are associated by scheduling of an independent query processing module with multiple deployments to the storage subsystem at a bottom layer and a multi-type characteristic extraction submodule, so as to realize management functions of storage, acquisition, query and the like to multiple unstructured data oriented to the source data and the characteristic data in a unified mode. The method has the advantage of high expandability in the aspects of the formed system architecture, management contents and the like.