Data index list storage strategy under mixing cloud environment

The invention relates to a data index list storage strategy under mixing cloud environment. In the traditional cloud storage environment, the huge redundancy and space waste caused by repeated storage of data are not fully considered. The cloud storage property is improved by optimizing the data storage strategy, so that the storage cost is further reduced. The data index list storage strategy is characterized in that firstly, an index list is established for the stored data in the space which can be accessed by a user, and comprises the related information of file name, file size and storage path of data; then, when the data is stored, the related information of data and an index list of accessible resources are subjected to duplicate matching; finally, the certain number threshold value S is set for the same accessible resources, the same accessible resources are judged, and the complete data storage is selected according to actual conditions. The data index list storage strategy has the advantages that the