Data migration method in cloud computing environment-oriented layered storage system

The invention discloses a data migration method in a cloud computing environment-oriented layered storage system. The layered storage system comprises an online business platform and a large data platform. The data comprise structurized data and non-structurized data and furthermore migrate between the online business platform and the large data platform. The data migration method comprises the steps of: determining the type of the data to be migrated; and migrating between the online business platform and the large data platform according to the type of the data, wherein when the data to be migrated are determined to the structurized data, a MapReduce architecture is adopted for realizing parallel migration, and when the data to be migrated are determined to the non-structurized data, a FTP manner is adopted for realizing parallel migration.