Hunan Key Laboratory of Psychiatry and Mental Health 1 article published in JoVE Behavior Assessment of Sexual Behavior of Male Mice Zi-Wei Liu1, Ning Jiang2, Xue Tao2, Xiao-Ping Wang1, Xin-Min Liu2, Shui-Yuan Xiao3 1Department of Psychiatry, The Second Xiangya Hospital, Central South University, National Clinical Research Center for Mental Disorders and National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, 2Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, 3Department of Social Medicine and Health Management, Xiangya School of Public Health, Central South University This article describes how to perform sexual behavior tests in male mice.