As a common mental disorder,alcohol dependence is characterized by compulsory alcohol - seeking behavior and incontrollable behavior of alcohol intake.The social,psychological and biological factors all play important roles in the formation and prognosis of patients with alcohol dependent.With the development of molecular biological technique in recent years,genetic research on alcohol dependence has become a hot topic.Candidate genes have been found to be associated with alcohol dependence in some studies.This paper mainly demonstrates some hot candidate ge...