Abstract: ［Abstract］Brain-derived neurotrophic factor plays an important role in neuron growth, differentiation, survival, plasticity and damage repair, and it can effectively prevent the methamphetamine-induced neuronal death. The article describes the mechanism of the toxic effects of methamphetamine, BDNF physiological role, and the role of BDNF in methamphetamine-dependent mechanism. BDNF may play an important role in methamphetamine dependence. The clarification of role of BDNF in the methamphetamine-dependent mechanism may provide a theoretical basis for detoxification treatment.