The invention belongs to the field of data processing and provides a data verification method and device.The method comprises the steps of searching for original data corresponding to data needing to be verified; receiving a data verification instruction; according to the data verification instruction, obtaining electronic data corresponding to the data needing to be verified; judging whether the electronic data corresponding to the data needing to be verified include data different from the original data corresponding to the data needing to be verified or not; when the size of the data different from the original data corresponding to the data needing to be verified in the electronic data corresponding to the data needing to be verified is larger than a preset data size threshold value, displaying standard data corresponding to the data needing to be verified so that user verification can be performed.According to the method, a user can independently verify answers, and the user learning efficiency can be improved.