The invention discloses a data processing method. The method comprises the following steps: determining whether a target data set satisfies a cloud server working storage trigger condition if detecting a deleting instruction aiming at the target data set; transferring the target data set to a working storage area of a cloud server from a set of terminal equipment if the target data set satisfies the cloud server working storage trigger condition; and indicating the cloud server to delete the target data set if a recovery instruction aiming at the target data set is undetected within the preset time. The embodiment of the invention further provides a data processing device. By use of the data processing method disclosed by the embodiment of the invention, the problem of data loss since the misoperation of a user deletes the data that the user does not want to delete can be avoided.