In order to understand the phenomenon of mammals hibernate in winter and its influence factors, make the mammals hibernate process in the behavior, the changes of physiological aspects can be better state, the definition,behavior and physical performance during the period of winter hibernation and influence factors of hibernation were expounded according to the research results of the hibernate both at home and abroad. The result showed that the behavior of mammals hibernate in winter was a combined action by behavior,physiology,genetic factors and so on. The'main factors that affecting mammals hibernate were environment temperature, temperature changes of themselves, nutrition factors and their own physical condition. Moreover, the significance of awakening during hibernate and the effect of hibernate on organs and gland of animals were elaborated.