The invention discloses a distributed data processing method, a data center and a data aggregating system. The distributed data processing method includes the steps of obtaining original data by the data center, conducting slicing processing on the original data by the data center, generating at least two data blocks, conducting encryption processing on each data block, generating N sub-data blocks, enabling the N to be a positive integer larger than two, conducting correcting and deleting processing on the N sub-data blocks, generating M parts of sub-data, enabling the M to be a positive integer larger than the N, enabling the N parts of sub-data in the M parts of sub-data to be capable of being used for being restored into the original data, enabling at least the N parts of sub-data in the M parts of sub-data to be stored in the data center, and enabling the remaining sub-data to be stored in other data centers of the distributed data aggregating system. By means of the distributed data processing method, safety backups of data between the data centers can be achieved.