Engineering management information backup method and system

The invention belongs to the technical field of engineering management information, and particularly relates to an engineering management information backup method and system. The system comprises: areceiving module which is used for receiving a reading instruction; a recording module used for recording the distribution and the state of each current data block when the data of the data blocks isrewritten after receiving the first instruction; a copying module used for copying the data before rewriting in the data blocks when the data of the data blocks is rewritten after receiving the firstinstruction; a comparison module used for comparing whether the current engineering management data is consistent or not; a backup module used for storing the backup data into a storage space when thedata compared by the comparison module is inconsistent; a transmission module used for transmitting the data; and a cloud server. According to the system and the method, automatic comparison and storage of data are realized, th