The invention discloses a battery abnormity processing method. The method comprises the following steps: detecting the battery parameters of a battery by a mobile terminal, and judging whether the battery parameters exceed a preset threshold value range; and if the battery parameters exceed the preset threshold value range, carrying out an abnormity processing operation. The invention also discloses a corresponding battery abnormity processing device, the mobile terminal and a battery abnormity processing system. Through the embodiment of the invention, when abnormity appears in the battery, the mobile terminal is controlled to be out of a normal service condition, battery explosion caused by the fact that the mobile terminal is continuously used by a user is avoided.