Epilepsy is one of the most serious neurological diseases, second only to stroke, with a prevalence of approximately 1% of the worlds population. Electroencephalogram (EEG), a summation of electrical activities generated by cortical neurons, was first recorded in 1924 by Hans Berger. Over the past decades, many researchers found that epileptic EEG is very different from that of normal people. As a result, the unique information in epileptic EEG is of significance in diagnosis of epilepsy and epileptic seizure prediction. Therefore, the purpose of this review is to illustrate the most recent and significant patents related to epileptic EEG processing including artifacts removal, epileptic events detection and seizure prediction. Finally, the manuscript points out the potential for future development in the field.