In recent years many studies have found that epilepsy patients had a new form of forgetting-accelerated long-term forgetting (ALF), with normal initial learning and memory, becoming abnormal in the following days or weeks. Although it has been nearly 30 years since ALF's discovery, there are still many problems to be understood. This paper reviews the definition, neurobiological basis, influencing factors, involvement in other diseases and current evaluation methods of ALF.