An electronic apparatus and a data verification method using the same are provided. The electronic apparatus includes a first read-only memory having first data, a second read-only memory having second data and a controller. A correspondence relation exists between the first data and the second data. The controller is coupled to the first read-only memory and the second read-only memory. The controller reads first sub-data of the first data from the first read-only memory, and reads second sub-data of the second data corresponding to the first sub-data from the second read-only memory according to the correspondence relation. The first sub-data includes to-be-verified data. The controller perfoi ins a verification operation to the to-be-verified data according to the first sub-data, the second sub-data and the correspondence relation.